Davidson Defense Venom 16-inch Pistol-Gas 1:8 .300 BLK AR-15 Freefloat M-Lok Handguard Rifle Upper Build Kit

Venom 16-Inch Pistol-Gas 1-8 .300 BLK AR-15 Freefloat M-LOK Handguard Upper Build Kit

This is an AR-15 upper build kit chambered in .300 AAC Blackout, built around a 16-inch HBAR steel barrel with a phosphate finish and a 1-8 twist rate. The upper receiver is 7075-T6 aluminum with a black anodized finish and M4 feed ramps. The kit covers the upper assembly including the upper receiver, barrel, and handguard. BCG and charging handle are not included.

Key Features

• .300 AAC Blackout chambering, 16-inch HBAR steel barrel, phosphate finish
• 1-8 twist rate
• Pistol-length gas system with pistol-length gas tube
• Micro low-profile steel gas block, .750 O.D.
• 7075-T6 aluminum upper receiver, black anodized, M4 feed ramps
• AR-15 ejection port door assembly
• Standard AR-15 forward assist assembly
• 15-inch Unique ARs Slim Rattler Handguard, freefloat M-LOK
• Full-length top Picatinny rail, M-LOK slots at 6 o'clock position
• A2 GI Birdcage flash hider, 1-2x28 thread pitch
• Black 1-2-inch crush washer

Perfect For

• AR-15 builders adding a .300 BLK upper to an existing lower
• Shooters sourcing a complete upper assembly for a 16-inch .300 BLK build
• Builders who already have a BCG and charging handle and need the upper assembly covered

Upper Receiver

The upper receiver in this kit is 7075-T6 aluminum with a black anodized finish. It includes M4 feed ramps, a standard AR-15 forward assist assembly, and an AR-15 ejection port door assembly. These features are standard to the AR-15 platform and are part of the included upper receiver.

Barrel and Gas System

The barrel is a 16-inch HBAR profile in steel with a phosphate finish and a 1-8 twist rate, chambered in .300 AAC Blackout. The gas system is pistol-length, with a pistol-length gas tube and a micro low-profile steel gas block at .750 O.D. The pistol-length gas system is specific to this barrel and chambering combination.

Unique ARs Slim Rattler Handguard

The handguard included in this kit is the Unique ARs Slim Rattler at 15 inches, covering the freefloat forend of the upper assembly. It features a full-length top Picatinny rail and M-LOK slots at the 6 o'clock position. The M-LOK pattern supports accessory attachment along the lower rail position.

Muzzle Device

The kit includes an A2 GI Birdcage flash hider threaded at 1-2x28, along with a black 1-2-inch crush washer. The A2 Birdcage is a standard AR-15 muzzle device on a .300 BLK compatible thread pitch. The crush washer is included as part of the muzzle device hardware.

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