Shop 10.5″ AR pistol barrels, complete uppers, and pistol kits at Daytona Tactical. One of the most popular compact AR pistol lengths, the 10.5-inch barrel delivers a great balance of velocity and maneuverability. Available in 5.56 NATO, .223 Wylde, 300 Blackout, 7.62×39, and 9mm — one of the widest 10.5″ caliber selections you’ll find. Whether you’re building from scratch with a pistol kit or grabbing a ready-to-run complete upper, we keep everything in stock and shipping fast.