Ruger PC Carbine, Magpul Backpacker, Semi-automatic, Rifle, 9MM, 16.12", Fluted Barrel, 1/2x28 Threaded, Black, Stealth Gray Magpul Backpacker Stock, Adjustable Ghost Ring Rear Sight, Blade Front Sight, 10 Rounds, 1 Magazine 19134 • Action: Semi-Automatic • Capacity: 10+1 • Finish: Black Oxide • Sights: Ft: Protected Blade Rr: Adjustable Ghost Ring • Barrel length: 16.12 Threaded Barrel 1/2-28 • Overall length: 35 • Reversible Magazine Release & Charging HandleInterchangeable Mag Wells Accpts Select Ruger/Glock Mags Threaded/Fluted Barrel • Action: Semi-Auto • Capacity: 10 + 1 • Finish: Anodized • Sights: FS: Blade/RS: Ghost Ring • Barrel length: 16.1" • Overall length: 35" • 15in Free-Float MLOK Rail/ Ambi Bolt Release