Colt M4 5.56mm Carbine and underslung 40mm Grenade Launcher Attachment (GLA). The GLA is 310mm long, with a separate trigger and guard fitted in front of the M4 magazine. The GLA can be removed with ...

The M4/M4A1 5.56mm Carbine is a lightweight ... If the Army determines that the winning rail system should be procured, delivery of new rails is anticipated in the summer of 2014.

The forward optic is 47mm in diameter. The entire unit is coated in a black powder coating, with a small amount of light grass green overspray on the rail attachment. The sight retains soil residue ...