Franklin Armory� is proud to produce 100% American made quality firearms. The PDW-C11 OPS is built with many of the custom features ready to go right out of the box. From the awesome Triumvir� to the Franklin Armory� Factory BFSIII� trigger to the SBA3 brace we know you will appreciate the quality and pricing this model affords. - Barrel Length + Type: 11.5 Medium Contour - Handguard/Upper: 11.5 Magpul SL M-LOK - Sights: Magpul MBUS / Fixed - Twist: 1:7 RH - Charging Handle: Badger Ordnance Gen 2 Tack Latch - Bolt Carrier: Salt Bath Nitride - Lower: Pistol - Trigger: BFSIII� - Gas System: Osprey Defense Piston - Gas System: OPS 416 Piston - Muzzle Device: Triumvir� - Color: Black - Brace: SBA3 - Grip: Magpul SL - Features: Hard Coat Type III Anodized - Caliber: 5.56 NATO