Caliber: 308/7.62x51mm / Capacity: 20+1 / Features: Semi-Auto/Gas Piston, 4-Position Regulator;M-LOC Slots, Full length Picatinny Top Rail / Type: Rifle: Semi-Auto / Action: Semi-Automatic / Finish: Black / Stock: Black Polymer Bullpup Configuration / Sight: Open Sights / Receiver: Black Polymer With MilSpec Picatinny Rail / Muzzle: Flash Hider / Butt Plate: Integral Rubber / Barrel Length: 16.5 / Overall Length: 26.75 / Weight: 9.25 lbs / Number Of Mags: 1