Complete Uppers

This ACME Machine 16 inch .22 LR Pencil barreled upper is great for easy conversion to a dedicated .22LR setup and works with CMMG or most .22LR components. This is the only 22LR lightweight barrel available at a reasonable price. These barrels...

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: Ballistic Advantage 16" SPR Stainless Steel, Premium SeriesTwist: 1:8Caliber: 6.5 Grendel Type II12" Free Float HandguardACME AR-15 Upper Receiver Tool Craft 6.5 Mil-Spec Bolt Carrier Group AR-15 Nitride  Photo is stock photo this upper will...

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" 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 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 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 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