AR-15 .300 AAC Blackout Upper Kit with 14.5 Barrel and 10 Free Float Super Slim Keymod Handguard Rail

This is an unassembled kit for building a functioning AR-15 pistol with a .300 AAC Blackout barrel. The kit does not include lower receiver, bolt carrier group or charging handle.

Specifications

• Upper receiver - US made
• Ejection port/dust cover assembly
• Forward assist assembly
• 14.5" .300 Blackout Pistol Barrel - US made
• Carbine length gas tube - US made
• Low profile gas block (tool and set screws included)
• Muzzle brake (birdcage design) with crush washer
• 10" super slim quad rail
• Steel barrel nut included but not shown