Complete Uppers

Barrel: 10.5" 416R Stainless Steel M4 ContourTwist: 1:8Caliber: 5.56 Chamber10" 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: 10.5" Parkerized 4150 Steel Heavy BarrelTwist: 1:7Caliber: 300 Blackout10" Free Float Handguard ACME AR-15 Upper Receiver ACME Charging Handle ACME 5.56 Mil-Spec Bolt Carrier Group Nitride C158 *Picture might show optional accessories

Barrel: 10.5" 416R Stainless Steel Heavy BarrelTwist: 1:7Caliber: 300 Blackout10" Free Float HandguardACME AR-15 Upper Receiver ACME Charging Handle ACME 5.56 Mil-Spec Bolt Carrier Group Nitride C158 *Picture might show optional accessories

Barrel: 10.5" 416R Stainless Heavy BarrelTwist: 1:24Caliber: 450 Bushmaster7" Free Float HandguardACME AR-15 Upper Receiver  Tool Craft 458 / 450 Mil-Spec Bolt Carrier Group Nitride *Picture might show optional accessories

Barrel: 10.5" 4150 Black Nitride M4 ContourTwist: 1:7Caliber: 5.56 Chamber10" 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: 10.5" Parkerized 4150 Steel Heavy BarrelTwist: 1:10Caliber: 7.62x3910" Free Float HandguardACME AR-15 Upper Receiver ACME Charging Handle Tool Craft 7.62x39 Mil-Spec Bolt Carrier Group AR-15 Nitride *Picture might show optional accessories

Barrel: 16" 416R Stainless Steel M4 Contour Barrel Twist: 1:8Caliber: .223 Wylde12" 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" 4150 Black Nitride Heavy BarrelTwist: 1:8Caliber: 300 Blackout12" 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: 1:8Caliber: 300 Blackout12" 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" 4150 Parkerized 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" 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