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

Jailbreak 16-inch .308 Winchester AR-10 Complete Upper

The Jailbreak is built around a 16-inch heavy .308 Winchester barrel, finished in Parkerized, paired with an AR-10/LR-308 high-profile stripped 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/LR-308 high-profile stripped upper receiver, black anodized finish
• Crest Series 15-inch high-profile LR-308 M-LOK handguard
• .308 flash/sound forwarder, nitrided finish
• Recoil Technologies LR-308 bolt carrier group, nitrided finish
• LR-308 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 journal.

Upper Receiver and Handguard

The upper receiver is an AR-10/LR-308, DPMS-pattern large-frame, high-profile stripped 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, finished in nitride with a smooth exterior profile threaded to a 5/8x24 pattern. It's designed to direct blast and concussion forward, 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.