The moe rifle stock (magpul original equipment) is a drop-in replacement for ar15/m16 a1 and a2 rifle stocks utilizing the standard rifle-length receiver extension (buffer tube).Designed as a basic upgrade, the stock features integral 1.25" sling loop, optional dual-side front, and rear qd mounting points, replaceable anti-slip rubberized butt-pad, and internal storage compartment accessible through the rear storage door.Firearm Type: AR-15Firearm Model: AR15/M16/M4Material: Reinforced PolymerFinish: GrayFeatures: Integral Storage CompartmentAdjustment Type: NonePositions: FixedLength Of Pull: 13.50"Tube Included: No