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.
Clipping onto the rail system on either side of the weapon are ... The weapon retains soil and dust residue from its last use. This M4 Carbine and underslung 40mm Grenade Launcher Attachment (GLA) ...