Davidson Defense Crater Maker 16-inch Mid-Gas 1:10 .308 Win AR-10 M-Lok Rifle Complete Upper Build

Crater Maker 16-inch .308 Winchester AR-10 Complete Upper

The Crater Maker is built around a 16-inch heavy .308 Winchester barrel, machined from 4150 chrome moly vanadium steel with a Parkerized finish, paired with an AR-10 high-profile upper receiver finished in black anodizing. It pairs a Crest Series 15-inch high-profile LR-308 M-LOK handguard with a .308 flash/sound forwarder at the muzzle, running on a mid-length gas system. A Recoil Technologies LR-308 bolt carrier group and aluminum charging handle round out the upper, giving the buyer everything needed on the upper side.

Key Features

• 16-inch heavy .308 Winchester barrel, 1:10 twist, Parkerized finish
• Mid-length gas system with micro low-profile steel gas block
• AR-10 high-profile upper receiver, black anodized finish
• Crest Series 15-inch high-profile LR-308 M-LOK handguard
• .308 flash/sound forwarder, smooth style, nitride finish
• Recoil Technologies LR-308 bolt carrier group, nitride finish, aluminum charging handle included

Barrel and Gas System

The barrel runs 16 inches long, chambered in .308 Winchester and built from 4150 chrome moly vanadium steel with a Parkerized finish and HBAR profile. It carries a 1:10 twist rate and a 5/8x24 muzzle thread. Gas cycles back to the action through a mid-length system, running a stainless steel mid-length gas tube and a micro low-profile steel gas block sized to a .750-inch diameter.

Upper Receiver and Handguard

The upper receiver is an AR-10 high-profile unit finished in black anodizing, fitted with an AR-15 forward assist assembly and an LR-308 ejection port door assembly. Over the barrel sits a Crest Series 15-inch high-profile LR-308 handguard, using an M-LOK attachment system along its length.

Muzzle Device

Capping the muzzle is a .308 flash/sound forwarder, rated for .30 caliber/.308 and built in a smooth style with a nitride finish. It threads onto the barrel's 5/8x24 pattern and is secured with the included 5/8-inch black crush washer.

Bolt Carrier Group and Charging Handle

A Recoil Technologies LR-308 bolt carrier group is included, finished in nitride and listed for use across .308 Winchester, 6.5 Creedmoor, and .243 Winchester. An LR-308 aluminum charging handle rounds out the upper's operating components.

Follow all manufacturer instructions and safe handling practices.

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