5.56 NATO AR-15 Upper Assembly – 5″ MICRO Barrel with 1:5 twist / 4″ M-LOK Handguard / A-160-811

Description

This MICRO AR15 upper receiver assembly comes ready to attach to any Mil-Spec lower receiver. The receiver is a flat top M4 forged Mil-Spec upper receiver that is CNC Machined from 7075-T6 aluminum -? the hardest and most durable material of any upper. The MICRO 5? 5.56 NATO barrel is manufactured with 4150 Chrome Moly steel and has a 1:5 twist rate & MICRO gas system. This upper assembly features a standard A2 flash hider that effectively suppresses muzzle flash.

• Barrel: 5? 5.56 NATO Barrel Chrome Moly
• Twist Rate: 1:5
• Feed Ramps: M4
• Gas Block: Steel .750 Low Profile
• Gas Tube: DGI Stainless Micro-Length
• Muzzle Device: A2 Flash Hider
• Rail: 4? M-LOK Rail
• Upper Receiver: Forged Upper Receiver
• Upper Components: Mil-Spec Forward Assist, Mil-Spec Dust Cover, and Brass Deflector

Please Note: An ?AR-15 Pistol? upper assembly has a barrel less than 16? in length. Pistol uppers are only for use on AR-15 pistol lowers and registered Short-Barreled Rifles. Other configurations may violate Federal law. Installation of AR-15 upper assemblies with certain features including, but not limited to: flash hiders, bayonet lugs, and threaded muzzles may violate state and/or local laws.