AR-15 Pistols — Short-Barrel BuildsAR-15 pistols run 7.5″, 8.5″, and 10.5″ barrels in 5.56 NATO, .300 Blackout, and 7.62×39. Each pistol-length gas system is matched to a free-float handguard (FCR, FGS, FQR, or RPR profile) and ships with a pistol buffer tube. Built for home defense, truck guns, and close-quarters work where a short sight radius and aggressive recoil impulse are the point.SB Tactical brace compatibilityOur AR-15 pistols are compatible with SBA3, SBA4, and all standard pistol-buffer-tube braces. Form 4 tax stamp not required on pistol configurations; configure as SBR only if you file for it.Related Categories5.56 NATO.300 BlackoutAR-15 RiflesAR-15 UppersEvery firearm on this page ships direct from our Stafford, Texas facility to the transferring FFL dealer of your choice. California, New York, New Jersey, and Massachusetts-compliant configurations available on request. NFA items (suppressors, SBRs) require Form 4 processing through your transferring dealer.