Compact AR-556 Pistol with an 8-inch barrel and SB Tactical pistol brace. The shorter barrel reduces muzzle velocity but keeps the platform highly maneuverable for close-quarters use. Includes a picatinny rail gas block for accessory mounting. Type: Semi-Auto Pistol Action: Gas-Operated Caliber: 5.56x45mm Capacity: 30 Year introduced: 2019, USA Weight: 5.7 oz Overall length: 24.8" Status: Active Intended use: Home Defense, Range