Bushmaster M4 Type Carbine

The M4 Type Carbine is a firearm manufactured by Bushmaster Firearms International, modeled on the AR-15 platform.

Overview
The M4 Type Carbine is a reproduction of the Colt M4 Carbine, but is usually only semi-automatic for legality within the U.S. civilian market. However, it can be ordered by military or law enforcement organizations with three-round burst or fully automatic capability. The rifle accepts both .223 Remington and 5.56x45mm NATO cartridges, and the barrel is hard chrome lined in both the bore and chamber. Unlike the current Colt M4 Carbine which features a 4-position telescopic stock, the Bushmaster has a 6-position stock. It is compatible with most standard AR-15 parts, and has the ability to accept all AR15/M16 type STANAG magazines. It is also one of many different AR-15 rifles Bushmaster manufactures which they have trademarked as "XM-15" rifles.

Bushmaster has also developed a 6.8 mm Remington SPC and a 7.62x39mm version of the rifle, simply named the 6.8mm SPC Rifle and the 7.62x39mm Carbine respectively, as well as a separate upper receiver kit that can be installed on any AR-15 type lower receiver.

All variants of the rifle are available in either M4A2 and M4A3 configurations; the difference being the M4A3 has a removable carry handle allowing access to a Picatinny rail for mounting accessories. Similarly, the 6.8mm SPC Rifle is available as either the A2 or the A3.

The standard M4 Type Carbine features a permanently fixed "Izzy" flash suppressor attached to a 14.5 in barrel which brings the barrel to a total length of 16 in. Bushmaster also produces the Patrolman's Carbine variant which features the more common removable "bird cage" flash suppressor, attached to a 16 in barrel bringing the total barrel length to 17.5 in. Both of these comply with current U.S. federal law which states a minimum 16 in barrel for a rifle. There is also a military M4 Type Carbine which comes with a 14.5 in barrel and a removable "bird cage" flash suppressor. The 6.8mm SPC Rifle only comes with a 16 in barrel and a removable "Izzy" flash suppressor.

An M4 Type Post-Ban Carbine was developed for the 1994 United States Federal Assault Weapons Ban requirements. Since the ban expired in 2004, this rifle has essentially been replaced by the M4A2 and M4A3. However, some states in the U.S. have kept these laws, so the rifle is still being produced.

Military users


The M4 carbine (or similar variants) is currently in service with military and police organizations in over 60 nations around the world.


 * 🇨🇿 Czech Republic: The Bushmaster M4A3 B.M.A.S. is used by special forces units of the Czech Armed Forces. These rifles are usually seen with an M203 grenade launcher. The 601st Special Forces Group is armed with the M4A3. The Emergency department of Military police use the M4A3 and sniper group of 43rd Airborne mechanized battalion.
 * Georgia
 * 🇮🇳 India: Used by special forces.
 * 🇳🇿 New Zealand: In 2006, the Armed Offenders Squad of the New Zealand Police replaced the Remington Model 7 with the Bushmaster M4 as their standard issue rifle.
 * 🇵🇱 Poland: The Bushmaster M4A3 was used by the Polish GROM.
 * 🇰🇷 South Korea: Used by the South Korean Coast Guard's Special Sea Attack Team.
 * 🇹🇭 Thailand: The Bushmaster M4A3 is used by Royal Thai Marine Corps equip with SOPMOD.