Davidson Defense Reaver 18-inch Rifle-Gas 1:7.5 6MM ARC AR-15 Freefloat M-Lok Handguard Rifle Upper Build Kit

Reaver 18-inch Rifle-Gas 1:7.5 6mm ARC AR-15 Freefloat M-LOK Upper Build Kit

The Reaver is a 6mm ARC AR-15 Upper Build Kit built around an 18-inch rifle-length gas platform. The kit centers on an 18-inch government profile barrel in 41V50 chrome moly vanadium steel with a nitride finish, 1:7.5 twist rate, 5R rifling, and 5/8x24 thread pitch, paired with a GI birdcage flash hider compatible with .308 Winchester, 7.62x39, and .300 Blackout, and a black crush washer. A micro low-profile steel gas block at 0.750 diameter and a rifle-length stainless steel gas tube are included on the front end. The upper receiver is a 7000 Series Optimized AR-15 design in 7075-T6 aluminum with a Type III hardcoat anodized black finish and an integrated dust cover pin design, with an ejection port cover including door, rod, and spring, paired with a 15-inch freefloat M-LOK handguard in black with a full-length Picatinny top rail. BCG and charging handle are not included.

Key Features

• 18-inch government profile barrel, 41V50 chrome moly vanadium steel, nitride finish, 1:7.5 twist, 5R rifling, 5/8x24 thread pitch, 6mm ARC
• Rifle-length gas system
• Rifle-length stainless steel gas tube
• Micro low-profile steel gas block, 0.750
• GI birdcage flash hider, 5/8x24, .308 Winchester and 7.62x39 and .300 Blackout compatible, black crush washer included
• 7000 Series Optimized AR-15 upper receiver, 7075-T6 aluminum, Type III hardcoat anodized black, integrated dust cover pin design, ejection port cover with door, rod, and spring
• 15-inch freefloat M-LOK handguard, black, full-length Picatinny top rail
• BCG and charging handle not included

Perfect For

• Builders sourcing a complete 6mm ARC AR-15 upper build kit with an 18-inch 41V50 chrome moly vanadium nitride barrel and 7000 Series Optimized upper receiver, pairing it with their own bolt carrier group and charging handle
• Shooters building an 18-inch 6mm ARC rifle-gas platform who prefer to select their own BCG while having the 5R rifled government profile barrel, stainless steel rifle-length gas tube, and freefloat M-LOK handguard covered in one kit
• AR-15 builders who want a 6mm ARC upper build kit with a 7000 Series Optimized upper receiver and integrated dust cover pin design without sourcing components separately

Barrel and Muzzle Device

The 18-inch government profile barrel is chambered in 6mm ARC and constructed from 41V50 chrome moly vanadium steel with a nitride finish. The twist rate is 1:7.5 with 5R rifling, and the thread pitch is 5/8x24, which matches the included GI birdcage flash hider. The flash hider is compatible with .308 Winchester, 7.62x39, and .300 Blackout at the 5/8x24 thread pitch. A black crush washer, a micro low-profile steel gas block at 0.750 diameter, and a rifle-length stainless steel gas tube cover the front end gas configuration on this rifle-length platform.

7000 Series Optimized Upper Receiver and Handguard

The 7000 Series Optimized AR-15 upper receiver is 7075-T6 aluminum with a Type III hardcoat anodized black finish and an integrated dust cover pin design that keeps the ejection port cover pin captured during field use. The ejection port cover is included with door, rod, and spring. The 15-inch freefloat M-LOK handguard is black with a full-length Picatinny top rail and M-LOK attachment points along the body for accessory mounting. These two components define the exterior structure of the upper assembly on this 6mm ARC platform.

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