Davidson Defense Inferno 7.5-inch 1:16 45ACP AR-45 Freefloat M-Lok Handguard Pistol Complete Upper Build

Inferno 7.5-inch .45 ACP AR-45 Complete Upper

The Inferno is a 7.5-inch .45 ACP AR-45 Complete Upper built around a Bear Creek Arsenal barrel and a 6061 aluminum billet pistol-caliber upper receiver. The barrel pairs with a 7-inch free-float M-LOK handguard, giving the upper-side assembly its structural foundation. A PCC bolt assembly and Mil-Spec charging handle are included, completing the upper-side operating components. The build runs on a direct blowback system, requiring no gas block or gas tube.

Key Features

• 7.5-inch .45 ACP Bear Creek Arsenal barrel, 1:16 twist
• Direct blowback operating system, no gas block or gas tube required
• 6061 aluminum billet pistol-caliber AR-15 upper receiver
• 7-inch black free-float M-LOK handguard
• KAK Industry .45 ACP Micro Flash Can muzzle device
• Complete PCC bolt assembly and Mil-Spec charging handle included
• Black finish

Barrel and Muzzle Device

The Inferno's barrel is a Bear Creek Arsenal 7.5-inch .45 ACP barrel built from 4150 chrome moly vanadium steel with a Parkerized finish and an M4 contour. It carries a 1:16 twist rate, a .578x28 muzzle thread, and a .750-inch gas block journal, and it operates on a direct blowback system that requires no gas block or gas tube. A KAK Industry Micro Flash Can chambered for .45 ACP is installed at the muzzle using the matching .578x28 thread pattern, secured with the included 5/8-inch black crush washer. Together these components define the barrel group that anchors the rest of the upper.

Upper Receiver and Handguard

The upper receiver is a 6061 aluminum billet unit built specifically for pistol-caliber AR-15 platforms, giving the Inferno its upper-side structural foundation. It's paired with a 7-inch free-float M-LOK handguard finished in black, mounting independent of the barrel for a clean forend with M-LOK accessory slots. The complete upper carries an overall black finish across its components. Both the receiver and handguard are matched to the barrel's dimensions and thread specifications supplied with this kit.

Bolt Assembly and Charging Handle

A PCC AR bolt assembly built for .45 ACP is included with this Complete Upper, matched to the pistol-caliber upper receiver and direct blowback barrel. A Mil-Spec AR-15 M4 charging handle is included alongside it, completing the upper-side operating components. Both parts are sized and configured specifically for this .45 ACP pistol-caliber build. Together they round out everything needed to complete the upper assembly.

Follow all manufacturer instructions and safe handling practices.

Ensure compliance with all applicable federal, state, and local laws.