This article describes the many variations of the Colt AR-15 and M16 rifle family of weapons produced by Colt's Manufacturing Company. Weapons patterned on the original ArmaLite AR-15 design have been produced by numerous manufacturers and have been used by nations around the world, some of which created their own variations.

The M4 Carbine (also known as the Colt 920) is an American assault carbine developed from the M16A2 Assault Rifle. The M4 is capable of semi-automatic and 3-rnd-burst fire modes. Since the early 2000s, the M4 and M4A1 were used with optics instead of …

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This M4 "replica" is based on a Colt 6520 carbine lower w/an M4 upper w/14.5" M4 barrel that has an xtended A2 FH pinned to the barrel to make it a legal 16", the use of the 14.5" original length barrel & the extended FH for the extra length allows the bayonet to fit the rifle properly.

The Colt Model LE6920 is one of the most reliable and dependable AR style tactical rifles on the market today.

The Colt Enhanced Patrol Rifle is a AR15 chambered in 5.56NATO and makes a great semi-automatic duty, home defense or recreational rifle. This M4 style patrol rifle from Colt firearms has a 16'' barrel with a 1:7 twist.

Colt’s new LE6920 shares many features of its combat proven brother, the Colt M4. The heart of this new carbine is its 16.1” chrome lined barrel. With a 1 in 7” twist, ammunition selection is virtually unlimited.

Our 5.56 chambered 14.5 inch M4 Carbine Length Barrel is machined from CrMoV steel with a chrome lined bore and chamber with a manganese phosphate finish and phosphate coated M4 feed ramp extension. This barrel includes the front sight base (F-Marked) For M4 flat top Uppers , handguard cap and delta ring assembly.

Colt Defense LE6920-FBP: The Colt LE6920-FBP2 builds on the venerable Colt LE6920 adding key accessories for this special makeup including a Geissele 13-inch MK4 rail system and Magpul Pro flip-up front and rear sights.