Spikes Tactical STSB920 AR-15 9mm Upper/Lower Set Compatible with Glock Mags - Black Anodized

Spike's Tactical Glock Magazine 9mm lower with pockets machined in many areas to reduce weight. The lower receiver design was engineered to shave the weight and increase strength exactly where we wanted it. All edges and surfaces have been 3D chamfered to reduce snagging. Enhanced pivot and steel take down pins which were designed around the lower receiver for a unique integrated look. 3D machined logo pictogram is the reverse look of a traditional lower receiver. Large flared magazine well. To keep the profile as slim as possible door, forward assist and shell deflector have been removed. Includes last round bolt hold open, shell ejector, KNS Mod ST pin kit, Buffer Retaining pin, Buffer Retaining pin spring and Spike's Tactical 90 Degree ambidextrous safety. *Not included: Pistol grip, Grip screw, Grip screw washer, Buffer tube, Latch plate, Castle nut, Buffer, Buffer spring, Hammer, Trigger, Disconnect, Hammer spring, Trigger Spring and Disconnect spring.