M16 rifle and United States Army Squad Designated Marksman Rifle

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Difference between M16 rifle and United States Army Squad Designated Marksman Rifle

M16 rifle vs. United States Army Squad Designated Marksman Rifle

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. The United States Army Squad Designated Marksman Rifle (SDM-R) is a heavily modified M16-series semi-automatic rifle intended to provide increased accuracy at longer ranges, giving infantry squads greater firepower.

Advanced Combat Optical Gunsight

Advanced Combat Optical Gunsight (abbreviated ACOG) is a series of telescopic sights manufactured by Trijicon.

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ArmaLite

ArmaLite, or Armalite, is an American small arms engineering company founded in the mid 1950s in Hollywood, California.

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Colt's Manufacturing Company

Colt's Manufacturing Company, LLC (CMC, formerly Colt's Patent Firearms Manufacturing Company) is an American firearms manufacturer, founded in 1855 by Samuel Colt.

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Designated marksman

The designated marksman (DM), squad advanced marksman (AD), or squad designated marksman (SDM) is a military marksman role in an infantry squad.

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Direct impingement

Direct impingement is a type of gas operation for a firearm that directs gas from a fired cartridge directly into the bolt carrier or slide assembly to cycle the action.

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Flash suppressor

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.

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FN Herstal

Fabrique Nationale Herstal (French for: National Factory Herstal), self-identified as FN Herstal and often referred to as Fabrique Nationale or simply FN, is a leading firearms manufacturer located in Herstal, Belgium, and is owned by the holding company Herstal Group which is owned by the regional government of Wallonia.

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Gas-operated reloading

Gas-operation is a system of operation used to provide energy to operate autoloading firearms.

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Iraq War

The Iraq WarThe conflict is also known as the War in Iraq, the Occupation of Iraq, the Second Gulf War, and Gulf War II.

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Iron sights

Iron sights are a system of shaped alignment markers (usually metal) used as a sighting device to assist in the aiming of a device such as a firearm, crossbow, or telescope, and exclude the use of optics as in reflector (reflex) sights, holographic sights, and telescopic sights.

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Knight's Armament Company

Knight's Armament Company (KAC) is an American firearms and firearms parts manufacturer, best known for producing the Rail Interface System (RIS) and the Rail Adapter System (RAS) grips for firearms use.

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List of individual weapons of the U.S. Armed Forces

This is a list of weapons served individually by the United States armed forces, sorted by type and current level of service.

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M4 carbine

The M4 carbine is a shorter and lighter variant of the M16A2 assault rifle.

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Magazine (firearms)

A magazine is an ammunition storage and feeding device within or attached to a repeating firearm.

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Picatinny rail

The Picatinny rail, or Pic rail for short, also known as a MIL-STD-1913 rail, or Standardization Agreement 2324 rail, is a mil-spec firearm rail interface system that provides a standard accessory mounting platform consisting of a hexagonal rail with multiple transverse slots, similar in concept to the earlier commercial Weaver rail mount used to mount telescopic sights.

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Rifling

In firearms, rifling is the helical groove pattern that is machined into the internal (bore) surface of a gun's barrel, for the purpose of exerting torque and thus imparting a spin to a projectile around its longitudinal axis during shooting.

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Sniper

A sniper is a military/paramilitary marksman who operates to maintain effective visual contact with the enemy and engage targets from concealed positions or at distances exceeding their detection capabilities.

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Stock (firearms)

A gunstock, often simply stock, also known as a shoulder stock, a buttstock or simply a butt, is a part of a long gun such as rifle, to which the barrelled action and firing mechanism are attached and is held against the user's shoulder when shooting the gun.

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United States Armed Forces

The United States Armed Forces are the military forces of the United States of America.

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United States Marine Corps

The United States Marine Corps (USMC), also referred to as the United States Marines, is a branch of the United States Armed Forces responsible for conducting amphibious operations with the United States Navy.

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United States Marine Corps Squad Advanced Marksman Rifle

The Squad Advanced Marksman Rifle (SAM-R) was a semi-automatic rifle developed by and in service with the United States Marine Corps.

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War in Afghanistan (2001–present)

The War in Afghanistan (or the U.S. War in Afghanistan; code named Operation Enduring Freedom – Afghanistan (2001–2014) and Operation Freedom's Sentinel (2015–present)) followed the United States invasion of Afghanistan of October 7, 2001.

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5.56×45mm NATO

The 5.56×45mm NATO (official NATO nomenclature 5.56 NATO) is a rimless bottlenecked intermediate cartridge family developed in Belgium by FN Herstal.

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