Heckler & Koch USC Rifle, Semi-automatic Rifle, 45 ACP, 16.5" Barrel, Matte Finish, Black, Synthetic Stock, Adjustable Iron Sights, Ambidextrous Safety, 10 Rounds, 2 Magazines 81000092 • Action: Semi-Automatic • Capacity: 10+1 • Finish: Black • Sights: RR: Adjustable for Windage and Elevation • Barrel length: 16.5 Forged Target Barrel • Overall length: 35.43 • Oversized Trigger GuardAmbidextrous Safety • Action: Semi-Auto • Capacity: 10 + 1 • Finish: Matte • Sights: Adjustable Rear • Barrel length: 16" • Overall length: 35.43" • 15in Free-Float MLOK Rail/ Ambi Bolt Release