Components

Barrel: 16" 416R Stainless Heavy BarrelTwist: 1:24Caliber: 450 Bushmaster12" Free Float HandguardACME AR-15 Upper Receiver Tool Craft 458 / 450 Mil-Spec Bolt Carrier Group Nitride *Picture might show optional accessories

Barrel: 16" 4150 Parkerized Heavy BarrelTwist: 1:14Caliber: 458 SOCOM12" Free Float HandguardACME AR-15 Upper Receiver Tool Craft 458 / 450 Mil-Spec Bolt Carrier Group Nitride   *Picture might show optional accessories

Barrel: 16" 416R Stainless Steel Heavy BarrelTwist: 1:14Caliber: 458 SOCOM12" Free Float HandguardACME AR-15 Upper Receiver Tool Craft 458 / 450 Mil-Spec Bolt Carrier Group Nitride   *Picture might show optional accessories

Barrel: 16" 4150 Black Nitride M4 ContourTwist: 1:7Caliber: 5.56 Chamber15" Free Float HandguardACME AR-15 Upper Receiver ACME 5.56 Mil-Spec Bolt Carrier Group AR-15 Nitride C158 *Picture might show optional accessories

Barrel: 16" 416R Stainless Steel M4 ContourTwist: 1:7Caliber: 5.56 Chamber15" Free Float HandguardACME AR-15 Upper Receiver 5.56 Mil-Spec Bolt Carrier Group AR-15 Nitride C158 *Picture might show optional accessories

Barrel: 16" Black Nitride 4150 Steel ContourTwist: 1:8Caliber: 6.5 Grendel12" Free Float HandguardACME AR-15 Upper Receiver ACME Charging Handle Tool Craft 6.5 Mil-Spec Bolt Carrier Group AR-15 Nitride *Picture might show optional accessories

Barrel: 16" 416R Stainless Steel ContourTwist: 1:8Caliber: 6.5 Grendel12" Free Float HandguardACME AR-15 Upper Receiver ACME Charging Handle Tool Craft 6.5 Mil-Spec Bolt Carrier Group AR-15 Nitride *Picture might show optional accessories

Barrel: 16" Parkerized 4150 Steel Contour BarrelTwist: 1:10Caliber: 6.8 SPC II12" Free Float HandguardACME AR-15 Upper Receiver Tool Craft 6.8 Mil-Spec Bolt Carrier Group AR-15 Nitride *Picture might show optional accessories

Barrel: 16" 4150 Parkerized Heavy BarrelTwist: 1:10Caliber: 7.62x3912" Free Float HandguardACME AR-15 Upper Receiver Tool Craft 7.62x39 Mil-Spec Bolt Carrier Group AR-15 Nitride *Picture might show optional accessories

Barrel: 16" 416R Stainless Steel Heavy BarrelTwist: 1:10Caliber: 7.62x3912" Free Float HandguardACME AR-15 Upper Receiver Tool Craft 7.62x39 Mil-Spec Bolt Carrier Group AR-15 Nitride *Picture might show optional accessories

Barrel:  16" ParkerizedCaliber: 350 Legend12" KeyMod Super Slim Free Float Handguard5.56 Mil-Spec Bolt Carrier Group AR-15 Nitride C158 *Picture might show optional accessories

Barrel: 16"  Black Nitride 4150 Steel Contour Twist: 1:10Caliber: 9mm12" Free Float Keymod HandguardACME AR-15 Upper Receiver ACME  9mm Mil-Spec Bolt Carrier Group Nitride *Picture might show optional accessories