Strike Industries' Pistol Buffer Tube introduces added functionality to an often overlooked part of an AR pistol PDW. The pistol buffer tube comes complete with SI's proven tungsten filled buffer and flat-wire buffer spring to aid in reliable cycling over a long service life. The receiver extension features an anti-rotation tab that locks into place over the buffer retaining plunger. It is machined from 7075-T6 aluminum for greater strength, while the integral QD socket at the rear of the tube facilitates push-pull operation when used in conjunction with slings. This Slick Version features a smooth profile.