A1 (1967) Trangular handguard,thin barrel,non-removable carry handle.Rear sight was windage only. Elevation was adjusted by front sight.
A2 (1980) Round handguard, non-removable handle, heavy barrel. Rear sight adjusted both windage and elevation.
A3 - removable carry handle makes it an A3
M4A2(top), M4A3(bottom)
Product Description:
One of the world’s most popular Military and Law Enforcement Carbine models, the
M4 Type features the distinctive M4 Barrel Profile (M203 compatible) and a Six Position Telestock for ease of deployment.
M4 Profile 14.5" Barrel (designed to accept M203 Grenade Launcher) with threaded muzzle and “Izzy” Flash Suppressor. Barrels are Hard Chrome lined in both Bore and Chamber for long life and ease of cleaning – with Manganese Phosphate exterior finish.
Six Position Telestocks are fitted on both models - when retracted, Carbine length decreases by 4” for convenient handling.
Upper Receivers available in A2 or A3 Configurations –
A2 Upper Receiver has a 300 – 800 Meter Rear Sight System (with 1 M.o.A. Elevation and ½ M.o.A. Windage adjustments). A3 Upper Receiver with Picatinny Rail for mounting sights, scopes, or optics includes Removable Carry Handle with 300 – 600 Meter Rear Sight System (½ M.o.A. Elevation and Windage adjustments). Receivers are Hard Anodize finished to non-reflective matte black.