Archived from the original on 20 August 2018. United States: Cambridge Police Department (Massachusetts).New Zealand: New Zealand Police (including Armed Offenders Squad and Special Tactics Group), replaced the Remington Model 7 as their standard issue rifle.Malaysia: Used by Royal Malaysian Customs.Kuwait: Used by the Kuwait 25th Commando Brigade.The 601st Special Forces Group is armed with the M4A3. These rifles are usually seen with an M203 grenade launcher. is used by special forces units of the Czech Armed Forces. Czech Republic: The Bushmaster M4A3 B.M.A.S.The court also ruled that 'M4' was now a generic name, and that Colt's trademark should be revoked. On the latter claim, Colt could not recover monetary damages. On December 8, 2005, a District court judge in Maine granted a summary judgment in favor of Bushmaster Firearms, dismissing all of Colt's claims except for false advertising. Heckler & Koch later settled out of court. In April 2004, Colt filed a lawsuit against Bushmaster and Heckler & Koch, claiming acts of trademark infringement, trade dress infringement, trademark dilution, false designation of origin, false advertising, patent infringement, unfair competition, and deceptive trade practices. Several other manufacturers, including Bushmaster, offer M4-like firearms, nicknamed 'M4geries.' Colt previously held a U.S. The M4 was developed and produced for the United States government by Colt, which had an exclusive contract to produce the M4 family of weapons until 2009. have kept these laws, so the rifle is still being produced.Р вЂќР вЂћ trademark dispute between Bushmaster and Colt concerned the use of the 'M4' name. Since the ban expired in 2004, this rifle has essentially been replaced by the M4A2 and M4A3. Р вЂќР вЂћn M4 Type Post-Ban Carbine was developed for the 1994 United States Federal Assault Weapons Ban requirements. There is also a military M4 Type Carbine which comes with a 14.5Р вЂ™Р’В in (370Р вЂ™Р’В mm) barrel and a removable 'bird cage' flash suppressor. federal law which states a minimum 16Р вЂ™Р’В in (410Р вЂ™Р’В mm) barrel for a rifle. Bushmaster also produces the Patrolman's Carbine variant which features the more common removable 'bird cage' flash suppressor, attached to a 16Р вЂ™Р’В in (410Р вЂ™Р’В mm) barrel, bringing the total barrel length to 17.5Р вЂ™Р’В in (440Р вЂ™Р’В mm). The standard M4 Type Carbine features a permanently fixed 'Izzy' flash suppressor attached to a 14.5Р вЂ™Р’В in (370Р вЂ™Р’В mm) barrel, which brings the barrel to a total length of 16Р вЂ™Р’В in (410Р вЂ™Р’В mm). It is compatible with most standard AR-15 parts and has the ability to accept all AR-15/M16 type STANAG magazines. Unlike the current Colt M4 Carbine which features a four-position telescopic stock, the Bushmaster has a six-position stock.

223 Remington/5.56Р вЂњРІР‚вЂќ45mm NATO, and the barrel is hard chrome lined in both the bore and chamber. A select fire variant can be ordered by military or law enforcement organizations with three-round burst or fully automatic capability. civilian market in compliance with the National Firearms Act. The semi-automatic version is marketed to the U.S. The M4 Type Carbine is a copy of the Colt M4 carbine.

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