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

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

The Chark is a 5.56 NATO AR-15 Complete Upper 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. A USA-made complete AR-15 bolt carrier group compatible with 5.56 NATO, .223 Remington, .300 Blackout, and .350 Legend, and a Mil-Spec AR-15 M4 charging handle complete the upper component set.

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
• USA-made complete AR-15 bolt carrier group, 5.56 NATO and .223 Remington and .300 Blackout and .350 Legend compatible
• Mil-Spec AR-15 M4 charging handle

Perfect For

• Builders sourcing a complete 5.56 NATO AR-15 pistol upper with a 7075-T6 black anodized upper receiver with forward assist, 8.5-inch nitride M4 contour barrel, USA-made BCG compatible with multiple calibers, and 7-inch aluminum tubular freefloat M-LOK handguard with suppressor-ready clearance ready to pair with their own lower receiver
• Shooters building a compact 8.5-inch pistol-gas 5.56 NATO platform who want the USA-made BCG and charging handle covered in one complete upper with a black anodized upper receiver and suppressor-ready tubular freefloat M-LOK handguard
• AR-15 pistol builders who want a 5.56 NATO complete upper with a USA-made BCG compatible with multiple calibers and a 7-inch tubular freefloat M-LOK handguard with suppressor-ready clearance 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.

Bolt Carrier Group and Charging Handle

The USA-made complete AR-15 bolt carrier group is compatible with 5.56 NATO, .223 Remington, .300 Blackout, and .350 Legend. A Mil-Spec AR-15 M4 charging handle is included to complete the upper component set.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws.