Buy online cheap, best, affordable and inexpensive AR-15 fixed rifle stock a1 a2 buffer tube kit 223/5.56 that includes mil-spec rifle length buffer tube, rifle length buffer spring of 39 Coils, screw length of 1.18'' 30mm and can screw inside diameter of 2mm gas vent port. Visit

A2 buffer tube kit | RIFLE LENGTH FIXED STOCK BUFFER...