Davidson Defense Blemished Reachback 8.5-inch Pistol-Gas 1:9 .300 BLK AR-15 Freefloat M-Lok Handguard Pistol Complete Upper Build

Blem Reachback 8.5-Inch .300 BLK AR-15 Pistol Complete Upper

This complete upper features an 8.5-inch Bear Creek Arsenal 4150 Chrome Moly Vanadium barrel with a blemished freefloat M-Lok handguard, chambered in .300 Blackout. The upper includes an anodized 7075-T6 aluminum receiver with M4 feed ramps, micro low-profile gas block, pistol-length gas system, GI birdcage flash hider, mil-spec charging handle, and 5.56x45mm QPQ nitride bolt carrier group with 9310 alloy steel construction. This is a blemished handguard with cosmetic imperfections that do not affect function.

Key Features

• Blem handguard, cosmetic imperfections do not affect function
• 8.5-inch Bear Creek Arsenal heavy barrel, 4150 Chrome Moly Vanadium with parkerized finish, 1:8 twist rate
• Blem freefloat M-Lok handguard, cosmetic finish irregularities, full functionality preserved
• Anodized AR-15 upper receiver with M4 feed ramps, 7075-T6 aluminum
• Pistol-length gas system with .750 micro low-profile gas block
• 5.56x45mm QPQ nitride bolt carrier group, 9310 alloy steel
• Mil-spec AR-15 M4 charging handle
• 5/8x24 threaded barrel with GI birdcage flash hider

Perfect For

• Budget-conscious .300 Blackout builds requiring complete upper assemblies
• Shooters prioritizing value over cosmetic perfection
• Builders seeking Bear Creek Arsenal heavy profile barrels
• Configurations demanding freefloat M-Lok handguards with pistol-length gas systems

Blem Handguard Value

This kit features a blemished freefloat M-Lok handguard with minor cosmetic imperfections such as finish irregularities or surface marks. These blemishes do not affect structural integrity, M-Lok slot functionality, or barrel freefloat performance. The blem designation provides significant value for builders focused on function.

.300 Blackout Chambering

.300 Blackout provides versatility across subsonic and supersonic ammunition in a compact platform. The caliber delivers effective terminal performance at close to intermediate ranges while maintaining compatibility with standard AR-15 lower receivers and magazines.

QPQ Nitride Bolt Carrier Group

The 5.56x45mm bolt carrier group features QPQ nitride finish over 9310 alloy steel. The nitride treatment provides corrosion resistance and surface hardness while reducing friction. This BCG is compatible with .300 Blackout chambering.

Compatibility and Assembly

This complete upper is compatible with standard AR-15 lower receivers. All components use mil-spec dimensions and threading, including the 5/8x24 TPI muzzle threads matching the included GI birdcage flash hider.

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