SOPMOD M4
SOPMOD M4 Caliber: 5.56 × 45mm M855 In view of the fact that many manufacturers that provide various sights, lights and other tactical accessories for carbines have not had a mounting interface mark for a long time, USSOCOM (U.S. Special Operations Command ) began to try to develop a set of close-combat carbines in September 1989 . The accessory interface standard was adopted, and the project name SOPMOD was officially proposed on May 15, 1992. SOPMOD means "Special Operations Peculiar Modification". This is the collective name for a series of equipment with the M4A1 rifle as the core. The derivative models such as Mk.18 CQBR and Mk.12 SPR that were later developed on this basis are actually part of SOPMOD. However, when the types of guns equipped increased, in some special forces, everyone used to use the abbreviation SOPMOD. Represents the M4A1 with ...