

For the purposes of this table, the RO nomenclature is obviated as this terminology did not exist in all cases, but it can be understood to be present. Colt’s systems have generally followed the times and though its model numbers originally came without prefixes, with the need to separate weapons made for civilian consumption from those made for military and law enforcement use, military models became prefixed with the code "RO". Colt has an intricate internal nomenclature system for its models, with a variety of suffixes and prefixes.


1.3 Colt military models without model numbersĬolt has been the most visible producer of ArmaLite AR-15 pattern weapons, and the military designations M16 & M4 are heavily associated with the company.

See Glossary of terms for an explanation of each column. Military while italic model numbers are weapons for commercial or export sale. For purposes of these tables, bold model numbers are weapons used (or previously used) by the U.S. The tables here are split in a variety of categories, and provide an overview of different subtypes. 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. This article describes the many variations of the Colt AR-15 and M16 rifle family of weapons produced by Colt's Manufacturing Company. M16A1 rifle with forward assist, raised boss around magazine release button and a 30-round magazine. For generic variants, see AR-15 style rifle.ĪrmaLite AR-15 with the charging handle located on top of the upper receiver, protected within the carrying handle and a 25-round magazineġ973 Colt AR-15 SP1 rifle with "slab side" lower receiver (lacking raised boss around magazine release button) and original Colt 20-round magazine. This article is about AR-15 variants made by Colt's Manufacturing Company.
