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

Confrontation 16-Inch Pistol-Gas 1-8 .300 BLK AR-15 M-LOK 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, and includes a standard forward assist assembly and an AR-15 ejection port door assembly. The 15-inch M-LOK Slant-Pro Series A freefloat handguard covers the front end. 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
• Adjustable skeletonized clamp-on gas block, .750 inch, black
• 7075-T6 aluminum upper receiver, black anodized, M4 feed ramps
• AR-15 ejection port door assembly
• Standard AR-15 forward assist assembly
• 15-inch M-LOK Slant-Pro Series A freefloat handguard
• Built-in QD sling mounts, flat top rail, quad rail front section, anti-rotation tabs, oblong vent cuts
• GI Birdcage flash hider, 5-8x24 thread pitch, .308 Win, 7.62x39, .300 BLK compatible
• Black 5-8-inch crush washer

Perfect For

• AR-15 builders sourcing a .300 BLK upper assembly without BCG or charging handle
• Shooters adding a .300 BLK upper to an existing lower with a BCG and charging handle on hand
• Builders who want an adjustable gas block and freefloat handguard in one upper kit

Upper Receiver

The upper receiver is 7075-T6 aluminum with a black anodized finish and M4 feed ramps. It includes a standard AR-15 forward assist assembly and an AR-15 ejection port door assembly. These are standard AR-15 platform features 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 an adjustable skeletonized clamp-on gas block at .750 inch in black. The adjustable gas block allows for gas flow adjustment at the block level.

M-LOK Slant-Pro Series A Handguard

The handguard is the M-LOK Slant-Pro Series A at 15 inches, covering the freefloat forend of the upper assembly. It features a flat top rail, a quad rail front section, built-in QD sling mounts, anti-rotation tabs, and oblong vent cuts. The combination of M-LOK slots and quad rail front section supports a range of accessory options across the handguard.

Muzzle Device

The kit includes a GI Birdcage flash hider threaded at 5-8x24, compatible with .308 Winchester, 7.62x39, and .300 AAC Blackout. A black 5-8-inch crush washer is included as part of the muzzle device hardware. The 5-8x24 thread pitch is standard for this caliber range on the AR-15 platform.

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