Davidson Defense Orbit 6-inch Pistol-Gas 1:7 .300 BLK AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit

Orbit 6-inch Pistol-Gas 1:7 .300 BLK AR-15 Freefloat M-LOK Pistol Upper Build Kit

The Orbit is a .300 AAC Blackout AR-15 Upper Build Kit built around a compact 6-inch pistol-length gas platform. The kit centers on a 6-inch steel barrel with a nitride finish, 1:7 twist rate, and 5/8x24 thread pitch, paired with a .308 compatible muzzle-mounted fake suppressor. A micro low-profile steel gas block at 0.750 diameter and a pistol-length gas tube are included on the front end. The 7000 Series optimized AR-15 upper receiver carries a Type III hardcoat anodized black finish with a dust cover pin retention feature and an ejection port door assembly, paired with a 7-inch Blem freefloat M-LOK handguard featuring a full-length Picatinny top rail and integrated QD sling mounts. BCG and charging handle are not included.

Key Features

• 6-inch steel barrel, nitride finish, 1:7 twist, 5/8x24 thread pitch, .300 AAC Blackout
• Pistol-length gas system
• Pistol-length gas tube
• Micro low-profile steel gas block, 0.750
• Muzzle-mounted fake suppressor, .308 compatible, 5/8x24
• 7000 Series optimized AR-15 upper receiver, Type III hardcoat anodized black, dust cover pin retention feature, ejection port door assembly
• 7-inch Blem freefloat M-LOK handguard, full-length Picatinny top rail, integrated QD sling mounts
• BCG and charging handle not included

Perfect For

• Builders sourcing a compact .300 AAC Blackout AR-15 pistol upper build kit with a 6-inch nitride barrel, Type III hardcoat anodized 7000 Series upper receiver, and 7-inch Blem freefloat M-LOK handguard with full-length Picatinny top rail and integrated QD sling mounts, pairing it with their own bolt carrier group and charging handle
• Shooters building a compact 6-inch pistol-gas .300 BLK platform who prefer to select their own BCG while having the nitride barrel, 7000 Series anodized upper receiver with dust cover pin retention, and freefloat M-LOK handguard with integrated QD sling mounts covered in one kit at a Blem handguard price point
• AR-15 pistol builders who want a .300 AAC Blackout upper build kit with a muzzle-mounted fake suppressor at 5/8x24 and a 7-inch lightweight freefloat M-LOK handguard without sourcing components separately

Barrel and Muzzle Device

The 6-inch barrel is chambered in .300 AAC Blackout and constructed from steel with a nitride finish. The twist rate is 1:7 and the thread pitch is 5/8x24, which matches the included .308 compatible muzzle-mounted fake suppressor. 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 7000 Series optimized AR-15 upper receiver carries a Type III hardcoat anodized black finish with a dust cover pin retention feature and an ejection port door assembly. The 7-inch freefloat M-LOK handguard is a Blem unit featuring a full-length Picatinny top rail and integrated QD sling mounts, with M-LOK attachment points along the body for accessory mounting. Blem handguards may exhibit minor cosmetic imperfections that do not affect function.

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