Magpul ACS AR15/M4 Tactical Butt Stock - Mil Spec - Black

Magpul Adaptive Carbine Storage stock is a medium weight at .75lbs. The ACS stock is a drop-in replacement for the standard M4 stock body, offering an integral storage compartment, removeable battery tubes, and a friction locking system to eliminate excessive stock movement or wiggle. Optional QD swivel can be added at accessory hole (purchased separately). LOP is adjustable from 11.1 inches to 14.4 inches