Davidson Defense Chark 8.5-inch Pistol-Gas 1:7 556 AR-15 Freefloat Tubular M-Lok Handguard Pistol Upper Build Kit

Chark 8.5-inch Pistol-Gas 1:7 5.56 NATO AR-15 Freefloat Tubular M-LOK Pistol Upper Build Kit

The Chark is a 5.56 NATO AR-15 Upper Build Kit built around a compact 8.5-inch pistol-length gas platform. The kit centers on an 8.5-inch M4 contour steel barrel with a nitride finish, 1:7 twist rate, and 1/2x28 thread pitch, paired with an A2 GI birdcage flash hider and a black 1/2-inch crush washer. A micro low-profile steel gas block at 0.750 diameter and a pistol-length gas tube are included on the front end. The 7075-T6 aluminum black anodized upper receiver features M4 feed ramps, a forward assist, and an ejection port door assembly, paired with a 7-inch aluminum tubular freefloat M-LOK handguard with a 1.77-inch internal diameter and suppressor-ready clearance. BCG and charging handle are not included.

Key Features

• 8.5-inch M4 contour steel barrel, nitride finish, 1:7 twist, 1/2x28 thread pitch, 5.56 NATO
• Pistol-length gas system
• Pistol-length gas tube
• Micro low-profile steel gas block, 0.750
• A2 GI birdcage flash hider, 1/2x28, black 1/2-inch crush washer included
• 7075-T6 aluminum upper receiver, black anodized, M4 feed ramps, forward assist, ejection port door assembly
• 7-inch aluminum tubular freefloat M-LOK handguard, 1.77-inch internal diameter, suppressor-ready clearance
• BCG and charging handle not included

Perfect For

• Builders sourcing a compact 5.56 NATO AR-15 pistol upper build kit with a 7075-T6 black anodized upper receiver with forward assist, 8.5-inch nitride M4 contour barrel, and 7-inch aluminum tubular freefloat M-LOK handguard with suppressor-ready clearance, pairing it with their own bolt carrier group and charging handle
• Shooters building a compact 8.5-inch pistol-gas 5.56 NATO platform who prefer to select their own BCG while having the nitride M4 contour barrel, black anodized upper receiver with M4 feed ramps and forward assist, and suppressor-ready tubular freefloat M-LOK handguard covered in one kit
• AR-15 pistol builders who want a 5.56 NATO upper build kit with a 7-inch tubular freefloat M-LOK handguard featuring suppressor-ready clearance and a 1.77-inch internal diameter without sourcing components separately

Barrel and Muzzle Device

The 8.5-inch M4 contour barrel is chambered in 5.56 NATO and constructed from steel with a nitride finish, 1:7 twist rate, and 1/2x28 thread pitch, which matches the included A2 GI birdcage flash hider. A black 1/2-inch crush washer, a micro low-profile steel gas block at 0.750 diameter, and a pistol-length gas tube cover the front end gas configuration on this pistol-length platform.

Upper Receiver and Handguard

The 7075-T6 aluminum upper receiver carries a black anodized finish with M4 feed ramps, a forward assist, and an ejection port door assembly. The 7-inch aluminum tubular freefloat M-LOK handguard features a 1.77-inch internal diameter with suppressor-ready clearance and M-LOK attachment points along the body for accessory mounting. These two components define the exterior structure of the upper assembly on this AR-15 pistol platform.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. BCG and charging handle are not included.