Colt has been the most visible producer of ArmaLite AR-15 pattern weapons, and the military designations M16 and M4 are heavily associated with the company. Colt has an intricate internal nomenclature system for its models, with a variety of suffixes and prefixes.

Features include a chrome-lined, 16.1″ barrel with 1:7″ twist. The barrel utilizes a direct impingement gas system and a 5.56 chamber. Includes a 4-position collapsible stock, Magpul rear sight, A2 front sight base and 7075-T6 aluminum receivers.” Specifications for the CR6920 are as follows: CR6920 Colt Carbine Box End Label.

Oct 10, 2022 · The M4 is a very classic AR design. The gun has all the features we are accustomed to for the AR-15, and it even has the M4-profile barrel that boasts a cut in the end of the barrel.

For the Individual Carbine competition, Colt submitted their Enhanced M4 design, also known as the Colt Advanced Piston Carbine (APC). The weapon has a suppression-ready fluted barrel, which is lighter and cools better than previous M4 barrels.

Feb 19, 2025 · This new CZ-owned Colt production M4 Carbine is chambered for 7.62x39mm. This cartridge is popular in Europe and was not offered in Colt catalogs prior to the CZ acquisition.

The Colt M4 Carbine, officially known as the Colt M4 Carbine Model 6921, features a 14.5-inch chrome-lined barrel, equipped with a pinned flash suppressor to meet legal length requirements and reduce muzzle flash.

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All three models operate in semi-automatic mode and chamber the 5.56x45mm NATO / .223 Remington cartridge, offering versatility and performance. Each variant blends the proven M4 design with tailored features, catering to law enforcement, military, and civilian needs. Sight: Magpul MBUS front sight. Diamondhead rear sight.