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

Jailbreak 16-inch .308 Winchester AR-10 Upper Build Kit

The Jailbreak is built around a 16-inch heavy .308 Winchester barrel, finished in Parkerized, 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. BCG and charging handle are not included, leaving the buyer to supply those components separately.

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, nitride finish
• BCG and charging handle are not 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 heavy 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 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, finished in nitride with a smooth exterior profile. It's designed to direct blast and concussion forward, threading onto the barrel's 5/8x24 pattern and secured with the included 5/8-inch black crush washer.

Follow all manufacturer instructions and safe handling practices.

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

BCG and charging handle are not included.