176 relations: Action (firearms), Aerosol, Air gun, Aluminium, American Rifleman, Ammunition, AN-94, AR-15 style rifle, AS Val, Assault rifle, Assault weapon, Automatic firearm, Back pressure, Background check, Baden-Württemberg, Ballistic coefficient, Bavaria, BB gun, Beverage can, Boomerang (countermeasure), British English, Bullwhip, Bureau of Alcohol, Tobacco, Firearms and Explosives, California, Canada Border Services Agency, Carbine, Cartridge (firearms), Censorship, Centerfire ammunition, Choke (firearms), Condensation, Cone, Connecticut, Counter-sniper tactics, Criminal Code (Canada), Cylinder (firearms), De Lisle carbine, Decibel, Delaware, Electromagnetic shielding, Enthalpy of vaporization, External ballistics, Firearm, Firearms policy in the United Kingdom, Flash suppressor, Foam, Franklin D. Roosevelt, Gauge (firearms), Gel, Gun barrel, ..., Gun laws in Canada, Gunfire locator, Hawaii, Hearing loss, Heckler & Koch MP5, Hertz, Heterodyne, High Standard HDM, Hiram Maxim, Hiram Percy Maxim, Ideal gas law, Illinois, Impulse noise (audio), Inconel, Internal combustion engine, Internal Revenue Code, Lead, Light machine gun, Los Angeles County Sheriff's Department, M14 rifle, M16 rifle, Machining, Magnum cartridge, Massachusetts, Maxim gun, Mesh, Ministry of Environment (Denmark), Momentum, MSP Groza silent pistol, Muffler, Muzzle booster, Muzzle energy, Muzzle flash, Muzzle velocity, Nagant M1895, National Firearms Act, National Rifle Association, National Rifle Association of the United Kingdom, Natural rubber, Nazi Germany, Neoprene, New Jersey, New York (state), Noise pollution, Noise-induced hearing loss, North Rhine-Westphalia, Occupational Safety and Health Administration, Office of Strategic Services, Oil, Oil filter, OTs-38 Stechkin silent revolver, Oval Office, Oxford English Dictionary, Paladin Press, PBS-1 silencer, Petroleum, Pistol, Plastic, Propellant, Psychoacoustics, Pure tone, Recoil, Revenue stamp, Revolver, Rhode Island, Rifle, Rimfire ammunition, Root mean square, Sectional density, Semi-automatic firearm, Shock wave, SilencerCo, Situation awareness, Smith & Wesson Model 29, Sonic boom, Sound baffle, Sound blimp, Sound intensity, Sound level meter, Sound pressure, Soviet Union, Special Operations Executive, Spectral density, Speed of sound, Stamping (metalworking), Steel, Steel wool, Submachine gun, Subsonic ammunition, Supersonic speed, Suppressor mutation, The American Heritage Dictionary of the English Language, The Hill (newspaper), The Washington Post, Theodore Roosevelt, Titanium, Title II weapons, Transonic, Turbulence, Ultrasound, United States Code, United States Department of Justice, United States Navy, Vapor, Vermont, Vietnam War, Washer (hardware), Washington, D.C., Wave interference, Welrod, White House, White noise, Wildlife, William J. Donovan, Winter War, World War II, ZB vz. 26, .22 Long Rifle, .221 Remington Fireball, .300 Whisper, .300 Winchester Magnum, .308 Winchester, .45 ACP, .50 BMG, 9×19mm Parabellum, 9×39mm. Expand index (126 more) » « Shrink index
In firearms terminology, an action is the mechanism that handles the ammunition (loads, locks, fires, extracts and ejects) or the method by which that mechanism works.
An aerosol is a suspension of fine solid particles or liquid droplets, in air or another gas.
An air gun (or airgun) is any kind of gun that launches projectiles pneumatically with compressed air or other gases that are pressurized mechanically without involving any chemical reactions, in contrast to a firearm, which relies on an exothermic chemical oxidation (deflagration) of combustible propellants to generate propulsive energy.
Aluminium or aluminum is a chemical element with symbol Al and atomic number 13.
American Rifleman is a United States-based monthly shooting and firearms interest publication, owned by the National Rifle Association (NRA).
Ammunition (informally ammo) is the material fired, scattered, dropped or detonated from any weapon.
The AN-94 (Russian: 5,45-мм автомат Никонова обр. 1994 г. / АН-94 «Абака́н», GRAU designation 6P33) is a rifle of Russian origin.
An AR-15 style rifle is a lightweight semi-automatic rifle based on the Colt AR-15 design.
The AS «Val» (Avtomat Special'nyj Val, Russian: Автомат Специальный Вал or Special Automatic Rifle, code name: "Shaft", GRAU designation 6P30) is a Soviet-designed assault rifle featuring an integrated suppressor.
An assault rifle is a selective-fire rifle that uses an intermediate cartridge and a detachable magazine.
Assault weapon is a term used in the United States to define some types of firearms.
An automatic firearm continuously fires rounds as long as the trigger is pressed or held and there is ammunition in the magazine/chamber.
Backpressure refers to pressure opposed to the desired flow of gases in confined places such as a pipe.
A background check or background investigation is the process of looking up and compiling criminal records, commercial records, and financial records of an individual or an organization.
Baden-Württemberg is a state in southwest Germany, east of the Rhine, which forms the border with France.
In ballistics, the ballistic coefficient (BC) of a body is a measure of its ability to overcome air resistance in flight.
Bavaria (Bavarian and Bayern), officially the Free State of Bavaria (Freistaat Bayern), is a landlocked federal state of Germany, occupying its southeastern corner.
BB guns are a type of air guns designed to shoot metallic ball projectiles called BBs — metal balls approximately the same size as the "BB" lead birdshots.
A beverage can is a metal container designed to hold a fixed portion of liquid such as carbonated soft drinks, alcoholic beverages, fruit juices, teas, herbal teas, energy drinks, etc.
Boomerang is a gunfire locator developed by DARPA and BBN Technologies primarily for use against snipers.
British English is the standard dialect of English language as spoken and written in the United Kingdom.
A bullwhip is a single-tailed whip, usually made of braided leather, designed as a tool for working with livestock.
The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) is a federal law enforcement organization within the United States Department of Justice.
California is a state in the Pacific Region of the United States.
The Canada Border Services Agency (CBSA) (Agence des services frontaliers du Canada; ASFC) is a federal agency that is responsible for border enforcement, immigration enforcement and customs services.
A carbine, from French carabine, is a long gun firearm but with a shorter barrel than a rifle or musket.
A cartridge is a type of firearm ammunition packaging a projectile (bullet, shots or slug), a propellant substance (usually either smokeless powder or black powder) and an ignition device (primer) within a metallic, paper or plastic case that is precisely made to fit within the barrel chamber of a breechloading gun, for the practical purpose of convenient transportation and handling during shooting.
Censorship is the suppression of speech, public communication, or other information, on the basis that such material is considered objectionable, harmful, sensitive, or "inconvenient" as determined by government authorities.
A centerfire cartridge is a cartridge with a primer located in the center of the cartridge case head.
In firearms, a choke is a tapered constriction of a shotgun barrel's bore at the muzzle end.
Condensation is the change of the physical state of matter from gas phase into liquid phase, and is the reverse of vapourisation.
A cone is a three-dimensional geometric shape that tapers smoothly from a flat base (frequently, though not necessarily, circular) to a point called the apex or vertex.
Connecticut is the southernmost state in the New England region of the northeastern United States.
The occurrence of sniper warfare has led to the evolution of counter-sniper tactics.
The Criminal Code (Code criminelThe citation of this Act by this short title is authorised by the French text of of this Act.) is a law that codifies most criminal offences and procedures in Canada.
In firearms, the cylinder is the cylindrical, rotating part of a revolver containing multiple chambers.
The De Lisle carbine or De Lisle Commando carbine was a British firearm used during World War II that was designed with an integrated suppressor.
The decibel (symbol: dB) is a unit of measurement used to express the ratio of one value of a physical property to another on a logarithmic scale.
Delaware is one of the 50 states of the United States, in the Mid-Atlantic or Northeastern region.
Electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials.
The enthalpy of vaporization, (symbol ∆Hvap) also known as the (latent) heat of vaporization or heat of evaporation, is the amount of energy (enthalpy) that must be added to a liquid substance, to transform a quantity of that substance into a gas.
External ballistics or exterior ballistics is the part of ballistics that deals with the behavior of a projectile in flight.
A firearm is a portable gun (a barreled ranged weapon) that inflicts damage on targets by launching one or more projectiles driven by rapidly expanding high-pressure gas produced by exothermic combustion (deflagration) of propellant within an ammunition cartridge.
In the United Kingdom, access by the general public to firearms is tightly controlled by law which is much more restrictive than the minimum rules required by the European Firearms Directive, but it is less restrictive in Northern Ireland.
A flash suppressor, also known as a flash guard, flash eliminator, flash hider, or flash cone, is a device attached to the muzzle of a rifle that reduces its visible signature while firing by cooling or dispersing the burning gases that exit the muzzle, a phenomenon typical of carbine-length weapons.
Foam is a substance formed by trapping pockets of gas in a liquid or solid.
Franklin Delano Roosevelt Sr. (January 30, 1882 – April 12, 1945), often referred to by his initials FDR, was an American statesman and political leader who served as the 32nd President of the United States from 1933 until his death in 1945.
The gauge of a firearm is a unit of measurement used to express the inner diameter (bore diameter) of the barrel.
A gel is a solid jelly-like material that can have properties ranging from soft and weak to hard and tough.
A gun barrel is a crucial part of gun-type ranged weapons such as small firearms, artillery pieces and air guns.
Gun legislation in Canada is largely about licensing and registration.
A gunfire locator or gunshot detection system is a system that detects and conveys the location of gunfire or other weapon fire using acoustic, optical, or potentially other types of sensors, as well as a combination of such sensors.
Hawaii (Hawaii) is the 50th and most recent state to have joined the United States, having received statehood on August 21, 1959.
Hearing loss, also known as hearing impairment, is a partial or total inability to hear.
The Heckler & Koch MP5 (from Maschinenpistole 5, meaning Submachine gun 5) is a 9mm submachine gun, developed in the 1960s by a team of engineers from the German small arms manufacturer Heckler & Koch GmbH (H&K) of Oberndorf am Neckar.
The hertz (symbol: Hz) is the derived unit of frequency in the International System of Units (SI) and is defined as one cycle per second.
Heterodyning is a signal processing technique invented in 1901 by Canadian inventor-engineer Reginald Fessenden that creates new frequencies by combining or mixing two frequencies.
The High Standard HDM is a semiautomatic pistol equipped with an integral silencer.
Sir Hiram Stevens Maxim (5 February 1840 – 24 November 1916) was an American-born British inventor, best known as the creator of the Maxim Gun, the first portable fully automatic machine gun.
Hiram Percy Maxim (September 2, 1869 – February 17, 1936) was an American radio pioneer and inventor, and co-founder (with Clarence D. Tuska) of the American Radio Relay League (ARRL).
The ideal gas law, also called the general gas equation, is the equation of state of a hypothetical ideal gas.
Illinois is a state in the Midwestern region of the United States.
Impulse noise is a category of (acoustic) noise which includes unwanted, almost instantaneous (thus impulse-like) sharp sounds (like clicks and pops).
Inconel is a family of austenitic nickel-chromium-based superalloys.
An internal combustion engine (ICE) is a heat engine where the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow circuit.
The Internal Revenue Code (IRC), formally the Internal Revenue Code of 1986, is the domestic portion of federal statutory tax law in the United States, published in various volumes of the United States Statutes at Large, and separately as Title 26 of the United States Code (USC).
Lead is a chemical element with symbol Pb (from the Latin plumbum) and atomic number 82.
A light machine gun (LMG) is a machine gun designed to be employed by an individual soldier, with or without an assistant, as an infantry support weapon.
With 17,694 employees, the Los Angeles County Sheriff's Department, officially the County of Los Angeles Sheriff's Department, is the nation's largest Sheriff's Department.
The M14 rifle, officially the United States Rifle, 7.62 mm, M14, is an American automatic rifle that fires 7.62×51mm NATO (.308 in) ammunition.
The M16 rifle, officially designated Rifle, Caliber 5.56 mm, M16, is a United States military adaptation of the ArmaLite AR-15 rifle.Kern, Danford Allan (2006).. m-14parts.com. A thesis presented to the Faculty of the US Army Command and General Staff College in partial fulfillment of the requirements for the degree MASTER OF MILITARY ART AND SCIENCE, Military History. Fort Leavenworth, KansasKokalis, Peter G.. Nodakspud.com The original M16 was a selective fire 5.56mm rifle with a 20-round magazine. In 1964, the M16 entered U.S. military service and the following year was deployed for jungle warfare operations during the Vietnam War. In 1969, the M16A1 replaced the M14 rifle to become the U.S. military's standard service rifle.Ezell, Edward Clinton (1983). Small Arms of the World. New York: Stackpole Books. pp. 46–47..Urdang, p. 801. The M16A1 improvements include a bolt-assist, chrome plated bore and a new 30-round magazine. In 1983, the U.S. Marine Corps adopted the M16A2 rifle and the U.S. Army adopted it in 1986. The M16A2 fires the improved 5.56×45mm NATO (M855/SS109) cartridge and has a new adjustable rear sight, case deflector, heavy barrel, improved handguard, pistol grip and buttstock, as well as a semi-auto and three-round burst only fire selector. Adopted in 1998, the M16A4 is the fourth generation of the M16 series.Weapons of the Modern Marines, by Michael Green, MBI Publishing Company, 2004, page 16 It is equipped with a removable carrying handle and Picatinny rail for mounting optics and other ancillary devices. The M16 has also been widely adopted by other militaries around the world. Total worldwide production of M16s has been approximately 8 million, making it the most-produced firearm of its 5.56 mm caliber. The U.S. Military has largely replaced the M16 in combat units with a shorter and lighter version named the M4 carbine.
Machining is any of various processes in which a piece of raw material is cut into a desired final shape and size by a controlled material-removal process.
A magnum cartridge is a firearms cartridge larger than, or derived from, a similar cartridge.
Massachusetts, officially known as the Commonwealth of Massachusetts, is the most populous state in the New England region of the northeastern United States.
The Maxim gun was a weapon invented by American-born British inventor Hiram Stevens Maxim in 1884: it was the first recoil-operated machine gun in production.
A mesh is a barrier made of connected strands of metal, fiber, or other flexible or ductile materials.
Ministry of the Environment of Denmark (Miljøministeriet) is the Danish ministry in charge of near all matters concerning Environmental issues in Denmark.
In Newtonian mechanics, linear momentum, translational momentum, or simply momentum (pl. momenta) is the product of the mass and velocity of an object.
The MSP Groza ("thunderstorm") silent pistol is a double-barrel, derringer-type firearm designed in the Soviet Union in 1972.
A muffler (silencer in many non-US English speaking countries) is a device for decreasing the amount of noise emitted by the exhaust of an internal combustion engine.
A muzzle booster or recoil booster is a device affixed to the muzzle of a firearm, intended to harness the energy of the escaping propellant to augment the force of recoil on portions of the firearm.
Muzzle energy is the kinetic energy of a bullet as it is expelled from the muzzle of a firearm.
Muzzle flash is the visible light of a muzzle blast, which expels high-temperature, high-pressure gases from the muzzle of a firearm.
Muzzle velocity is the speed of a projectile at the moment it leaves the muzzle of a gun.
The Nagant M1895 Revolver was a seven-shot, gas-seal revolver designed and produced by Belgian industrialist Léon Nagant for the Russian Empire.
The National Firearms Act (NFA), 73rd Congress, Sess.
The National Rifle Association of America (NRA) is an American nonprofit organization that advocates for gun rights.
The National Rifle Association of the United Kingdom (NRA) is the governing body of full bore rifle and pistol shooting sports in the United Kingdom.
Natural rubber, also called India rubber or caoutchouc, as initially produced, consists of polymers of the organic compound isoprene, with minor impurities of other organic compounds, plus water.
Nazi Germany is the common English name for the period in German history from 1933 to 1945, when Germany was under the dictatorship of Adolf Hitler through the Nazi Party (NSDAP).
Neoprene (also polychloroprene or pc-rubber) is a family of synthetic rubbers that are produced by polymerization of chloroprene.
New Jersey is a state in the Mid-Atlantic region of the Northeastern United States.
New York is a state in the northeastern United States.
Sound pollution, also known as environmental noise or noise pollution, is the propagation of noise with harmful impact on the activity of human or animal life.
Noise-induced hearing loss (NIHL) is hearing impairment resulting from exposure to loud sound.
North Rhine-Westphalia (Nordrhein-Westfalen,, commonly shortened to NRW) is the most populous state of Germany, with a population of approximately 18 million, and the fourth largest by area.
The Occupational Safety and Health Administration (OSHA) is an agency of the United States Department of Labor.
The Office of Strategic Services (OSS) was a wartime intelligence agency of the United States during World War II, and a predecessor of the modern Central Intelligence Agency (CIA).
An oil is any nonpolar chemical substance that is a viscous liquid at ambient temperatures and is both hydrophobic (does not mix with water, literally "water fearing") and lipophilic (mixes with other oils, literally "fat loving").
An oil filter is a filter designed to remove contaminants from engine oil, transmission oil, lubricating oil, or hydraulic oil.
The OTs-38 Stechkin is a 5-shot, double-action revolver, in production and service with the Russian Army since 2002 and Russian Internal Troops since 2012, chambered in the silent 7.62×42mm SP-4 cartridge.
The Oval Office is the working office space of the President of the United States located in the West Wing of the White House, Washington, DC.
The Oxford English Dictionary (OED) is the main historical dictionary of the English language, published by the Oxford University Press.
Paladin Press was a book publishing firm founded in 1970 by Peder Lund and Robert K. Brown.
The PBS-1 is a silencer designed for the Soviet AK-47 assault rifle.
Petroleum is a naturally occurring, yellow-to-black liquid found in geological formations beneath the Earth's surface.
A pistol is a type of handgun.
Plastic is material consisting of any of a wide range of synthetic or semi-synthetic organic compounds that are malleable and so can be molded into solid objects.
A propellant or propellent is a chemical substance used in the production of energy or pressurized gas that is subsequently used to create movement of a fluid or to generate propulsion of a vehicle, projectile, or other object.
Psychoacoustics is the scientific study of sound perception and audiology.
A pure tone is a tone with a sinusoidal waveform; this is, a sine wave of any frequency, phase, and amplitude.
Recoil (often called knockback, kickback or simply kick) is the backward movement of a gun when it is discharged.
A revenue stamp, tax stamp or fiscal stamp is a (usually) adhesive label used to collect taxes or fees on documents, tobacco, alcoholic drinks, drugs and medicines, playing cards, hunting licenses, firearm registration, and many other things.
A revolver (also called a wheel gun) is a repeating handgun that has a revolving cylinder containing multiple chambers and at least one barrel for firing.
Rhode Island, officially the State of Rhode Island and Providence Plantations, is a state in the New England region of the United States.
A rifle is a portable long-barrelled firearm designed for precision shooting, to be held with both hands and braced against the shoulder for stability during firing, and with a barrel that has a helical pattern of grooves ("rifling") cut into the bore walls.
Rimfire is a method of ignition for metallic firearm cartridges as well as the cartridges themselves.
In statistics and its applications, the root mean square (abbreviated RMS or rms) is defined as the square root of the mean square (the arithmetic mean of the squares of a set of numbers).
Sectional density is the ratio of an object's mass to its cross-sectional area with respect to a given axis.
A semi-automatic firearm, or self-loading firearm, is one that not only fires a bullet each time the trigger is pulled, but also performs all steps necessary to prepare it to discharge again—assuming cartridges remain in the firearm's feed device.
In physics, a shock wave (also spelled shockwave), or shock, is a type of propagating disturbance.
SilencerCo is a manufacturer of firearm suppressors "silencers" headquartered in West Valley City, Utah.
Situational awareness or situation awareness (SA) is the perception of environmental elements and events with respect to time or space, the comprehension of their meaning, and the projection of their status after some variable has changed, such as time, or some other variable, such as a predetermined event.
The Smith & Wesson Model 29 is a six-shot, double-action revolver chambered for the.44 Magnum cartridge and manufactured by the United States company Smith & Wesson.
A sonic boom is the sound associated with the shock waves created whenever an object traveling through the air travels faster than the speed of sound.
A sound baffle is a construction or device which reduces the strength (level) of airborne sound.
A sound blimp is a housing attached to a camera which reduces the sound caused by the shutter click, particularly SLRs.
Sound intensity level also known as acoustic intensity is defined as the power carried by sound waves per unit area in a direction perpendicular to that area.
A sound level meter is used for acoustic (sound that travels through air) measurements.
Sound pressure or acoustic pressure is the local pressure deviation from the ambient (average or equilibrium) atmospheric pressure, caused by a sound wave.
The Soviet Union, officially the Union of Soviet Socialist Republics (USSR) was a socialist state in Eurasia that existed from 1922 to 1991.
The Special Operations Executive (SOE) was a British World War II organisation.
The power spectrum S_(f) of a time series x(t) describes the distribution of power into frequency components composing that signal.
The speed of sound is the distance travelled per unit time by a sound wave as it propagates through an elastic medium.
Stamping (also known as pressing) is the process of placing flat sheet metal in either blank or coil form into a stamping press where a tool and die surface forms the metal into a net shape.
Steel is an alloy of iron and carbon and other elements.
Steel wool, also known as iron wool, wire wool or wire sponge, is a bundle of very fine and flexible sharp-edged steel filaments.
A submachine gun (SMG) is a magazine-fed, automatic carbine designed to fire pistol cartridges.
Subsonic ammunition is ammunition designed to operate at speeds below the speed of sound, which at standard conditions is.
Supersonic travel is a rate of travel of an object that exceeds the speed of sound (Mach 1).
A suppressor mutation is a second mutation that alleviates or reverts the phenotypic effects of an already existing mutation in a process defined synthetic rescue.
The American Heritage Dictionary of the English Language (AHD) is an American dictionary of English published by Boston publisher Houghton Mifflin, the first edition of which appeared in 1969.
The Hill is an American political newspaper and website published in Washington, D.C. since 1994.
The Washington Post is a major American daily newspaper founded on December 6, 1877.
Theodore Roosevelt Jr. (October 27, 1858 – January 6, 1919) was an American statesman and writer who served as the 26th President of the United States from 1901 to 1909.
Titanium is a chemical element with symbol Ti and atomic number 22.
Title II weapons, or NFA firearms, are designations of certain weapons under the United States National Firearms Act (NFA).
In aeronautics, transonic (or transsonic) flight is flying at or near the speed of sound (at sea level under average conditions), relative to the air through which the vehicle is traveling.
In fluid dynamics, turbulence or turbulent flow is any pattern of fluid motion characterized by chaotic changes in pressure and flow velocity.
Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing.
The Code of Laws of the United States of America (variously abbreviated to Code of Laws of the United States, United States Code, U.S. Code, U.S.C., or USC) is the official compilation and codification of the general and permanent federal statutes of the United States.
The United States Department of Justice (DOJ), also known as the Justice Department, is a federal executive department of the U.S. government, responsible for the enforcement of the law and administration of justice in the United States, equivalent to the justice or interior ministries of other countries. The department was formed in 1870 during the Ulysses S. Grant administration. The Department of Justice administers several federal law enforcement agencies including the Federal Bureau of Investigation (FBI), and the Drug Enforcement Administration (DEA). The department is responsible for investigating instances of financial fraud, representing the United States government in legal matters (such as in cases before the Supreme Court), and running the federal prison system. The department is also responsible for reviewing the conduct of local law enforcement as directed by the Violent Crime Control and Law Enforcement Act of 1994. The department is headed by the United States Attorney General, who is nominated by the President and confirmed by the Senate and is a member of the Cabinet. The current Attorney General is Jeff Sessions.
The United States Navy (USN) is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States.
In physics a vapor (American) or vapour (British and Canadian) is a substance in the gas phase at a temperature lower than its critical temperature,R.
Vermont is a state in the New England region of the northeastern United States.
The Vietnam War (Chiến tranh Việt Nam), also known as the Second Indochina War, and in Vietnam as the Resistance War Against America (Kháng chiến chống Mỹ) or simply the American War, was a conflict that occurred in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975.
A washer is a thin plate (typically disk-shaped) with a hole (typically in the middle) that is normally used to distribute the load of a threaded fastener, such as a Bolt or nut.
Washington, D.C., formally the District of Columbia and commonly referred to as Washington or D.C., is the capital of the United States of America.
In physics, interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude.
The Welrod is a British bolt action, magazine fed, suppressed pistol devised during World War II at the Inter-Services Research Bureau (later Station IX), based near Welwyn Garden City, United Kingdom, for use by irregular forces and resistance groups.
The White House is the official residence and workplace of the President of the United States.
In signal processing, white noise is a random signal having equal intensity at different frequencies, giving it a constant power spectral density.
Wildlife traditionally refers to undomesticated animal species, but has come to include all plants, fungi, and other organisms that grow or live wild in an area without being introduced by humans.
William Joseph Donovan (January 1, 1883 – February 8, 1959) was an American soldier, lawyer, intelligence officer and diplomat.
The Winter War was a military conflict between the Soviet Union (USSR) and Finland.
World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although conflicts reflecting the ideological clash between what would become the Allied and Axis blocs began earlier.
The ZB vz.
The.22 Long Rifle (metric designation: 5.6×15mmR) cartridge is a long-established variety of.22 caliber rimfire ammunition, and in terms of units sold is still by far the most common ammunition in the world today.
The.221 Remington Fireball is a centerfire cartridge created by Remington Arms Company in 1963 as a special round for use in their experimental single-shot bolt-action pistol, the XP-100.
The.300 Whisper is a CIP standard cartridge in the Whisper family, a group of cartridges developed in the early 1990s by J.D. Jones of SSK Industries.
The.300 Winchester Magnum (also known as.300 Win Mag or 300WM) (7.62×67mm) is a belted, bottlenecked magnum rifle cartridge that was introduced by Winchester Repeating Arms Company in 1963.
The.308 Winchester (pronounced: "three-oh-eight") is a rimless, bottlenecked rifle cartridge and is the commercial cartridge from which the 7.62×51mm NATO round was derived.
The.45 ACP (Automatic Colt Pistol), or.45 Auto (11.43×23mm) is a handgun cartridge designed by John Browning in 1905, for use in his prototype Colt semi-automatic pistol.
The.50 Browning Machine Gun (.50 BMG, 12.7×99mm NATO and designated as the 50 Browning by the C.I.P.) is a cartridge developed for the Browning.50 caliber machine gun in the late 1910s.
The 9×19mm Parabellum is a firearms cartridge that was designed by Georg Luger and introduced in 1902 by the German weapons manufacturer Deutsche Waffen und Munitionsfabriken (DWM) (German Weapons and Munitions Factory) for their Luger semi-automatic pistol.
The 9×39mm is a Soviet / Russian rifle cartridge and is the world’s longest developed modern bullet.