Adams Arms P1 in pistol configuration with a 10.5-inch barrel — the entry-level pistol piston AR from Adams Arms. Provides the reliability advantages of the piston system in the compact NFA-exempt pistol format at the most accessible price point in the Adams Arms line. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 2013, USA Weight: 96 oz Overall length: 23.5" Status: Active Intended use: Home Defense, CQB, Budget