The Aero Precision AC-15 in .300 Blackout with a 10.5-inch barrel is a builder-grade pistol offering premium fit and finish at a competitive price point. The AC-15 features Aero's enhanced upper receiver with M4 feedramps and a free-float M-LOK handguard. Type: Pistol Action: Semi-Automatic Caliber: .300 Blackout Capacity: 30 Year introduced: 2017, USA Weight: 60 oz Overall length: 27" Status: Active Intended use: Home Defense, Suppressor Host, Tactical