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The Close Quarter Battle Receiver (CQBR) [5] is a replacement upper receiver for the M4A1 carbine developed by the US Navy.. The CQBR features a 10.3 in (262 mm) length barrel (similar to the Colt Commando short-barreled M16 variants of the past) which makes the weapon significantly more compact, thus making it easier to use in, and around, vehicles and in tight, confined spaces.
The Special Operations Peculiar MODification (SOPMOD) kit is an accessory system for the M4A1 carbine, CQBR, FN SCAR Mk 16/17, HK416 and other weapons used by United States Special Operations Command (USSOCOM) special forces units, though it is not specific to SOCOM.
The Colt Model 933 is a compact carbine based on the AR-15, M16 rifle and M4 Carbine produced by Colt starting in 1995. Due to its compact size, the short-barreled Colt 933 continues to be used by various US Special Forces and by some foreign forces, including Israeli Special Forces.
The M4A1 carbine is a fully automatic variant of the basic M4 carbine. The M4A1 was developed in May 1991 and entered service in 1994; starting in 2014 the U.S. Army began upgrading all of its existing M4s to the M4A1 standard. [69] The M4A1 was the first M4 model with the removable carry handle.
Tokyo Marui was the first company to introduce airsoft guns powered solely by electric motor gearbox-driven spring-piston assembly in 1992, which they called "automatic electric gun" (AEG). This compact air pump system was implemented in their first battery-powered automatic firing replica, the FAMAS F1 .
[1] The Marine Corps uses a variety of direct-fire rockets and missiles to provide infantry with an offensive and defensive anti-armor capability. The SMAW and AT4 are unguided rockets that can destroy armor and fixed defenses (e.g. bunkers) at ranges up to 500 meters.
Colt M4 Carbines and Colt M4A1 Carbines can be easily and relatively inexpensively modified/upgraded into ACC-Ms by replacing the upper receiver, which is more cost-effective than completely replacing the weapons with a whole new carbine with a different control layout and different overall ergonomics and handling characteristics that require ...
After Colt's Patent Firearms Manufacturing Company purchase of the rights and intellectual property to the AR-10 and AR-15 rifles from Armalite in late 1959, Colt's embarked on a research and development program to create variations of the AR platform that evolved into the CAR-15 family of firearms. The focus of the CAR-15 R&D was to develop ...