Colt CM901

Colt CM901
The 7.62mm Colt CM901
Type	Modular weapon Battle rifle
Place of origin	United States
Service history
In service	2013-present
Used by	See Users
Production history
Manufacturer	Colt's Manufacturing Company
Produced	2010s-present
Variants	SP901 LE901-16S
Specifications
Weight	4.3 kg (9.4 lb) (unloaded)
Length	950 mm (37.5 in) ( extended) 870 mm (34.24 in) (stock retracted)
Barrel length	410 mm (16.1 in)
Cartridge	5.56×45mm NATO 6.8mm Remington SPC 7.62×39mm 7.62×51mm NATO
Caliber	5.56mm/.223 6.8mm/.277 7.62mm/.308
Action	Gas-operated, rotating bolt (Direct impingement)
Rate of fire	700–950 Rounds per minute
Effective firing range	700 m
Feed system	30-round detachable STANAG magazines Proprietary box magazines (7.62×51mm NATO)
Sights	Flip-up

The Colt CM901 is a modular selective-fire rifle. Its calibre and barrel length can be changed without the use of tools, effectively converting it from a battle rifle to a assault rifle . Its semi-automatic variant is the LE901-16S.

The CM901 (Colt Modular) weapons system is based on Colt's existing M16/M4 military designs. It shares the direct gas impingement operation, as well as much of the action, controls, and basic aesthetics with previous Colt rifle designs. The system's heart is a common lower receiver housing an enlarged magazine well that will accommodate larger caliber ammunition than NATO 5.56×45mm rounds, ambidextrous controls for the bolt release mechanism, magazine release, and fire selector/safety lever, trigger group, pistol grip, telescopic stock, and buffer tube. The system will accept a series of upper receiver assemblies that contain the respective action required to accommodate the various caliber rounds accepted by the weapon. A re-designed upper receiver firing standard 5.56mm ammunition will be produced in various barrel lengths, all having a monolithic design with a full-length top rail, and three auxiliary rails for mounting accessories, free-floating barrels, and front and rear flip-up sights standard, when not using upgraded optics.

Upper receivers will be available in several calibers and barrel lengths, as short as 270 millimetres (10.7 in) for the 5.56mm model. The lower receiver will also accept older mil-spec M16 or M16 upper receivers with an adapter. Receivers will be available that accept 5.56×45mm NATO NATO rounds, 6.8×43mm Remington SPC rounds, 7.62×39mm rounds, and 7.62×51mm NATO rounds. Each upper receiver has its own rail system, which allows scopes, or other optics to be pre-sighted for each configuration, and swapped quickly to perform different tasks.

The system can be anodized in a standard matte black finish, but has standard color options including Desert Brown, Digital Camouflage, and Vista Camouflage, which are applied during the anodizing process to prevent wear during use.