5.56 AR 15 Rifle Upper Assembly – 16″ Phosphate Barrel 1:7 Twist Rate with Classic A2 Handguard

Description

Some people love classic things. Some of those classic-loving people love classic firearms. You know the type. They can list every good thing about the 1911 in alphabetical order, or tell ya all about how the M-16 used to “jam like a sumbitch.” They might even have personal experience on the matter. 

If you’re the type, you’ll love this build kit, because it’ll get you most of the parts you need to build an AR with an old-school M4A2 look. Everything about this kit screams “mil-spec,” too, except for the barrel treatment: We ditched chrome lining in favor of a full phosphate treatment to provide even more accuracy and better protection against the elements.

What’s Included

This kit is not a firearm. It includes an assembled upper receiver, bolt carrier group, and charging handle. 

AR-15 Rifle Kit Specs

Barreled uppers are assembled in-house before shipment.

Barrel

• Chamber: 5.56 NATO
• Contour: M4/Government
• Length: 16”
• Twist Rate: 1:7
• Gas System: Carbine
• Gas Port: 0.750”
• Gas Hole Dia.: 0.070”
• Muzzle Threads: 1/2×28
• Feed Ramps: M4
• Material: 4150 CMV
• Finish: Phosphate
• Process: Button Rifled
• Lining: QPQ Nitride
• Extension: M4
• Muzzle: A2 “Birdcage” Flash Hider

Handguard

• Attachment System: Two-Piece “A2” Handguard
• Finish: Matte Black
• Top Rail: None
• Material: Polymer
• Attachment: Delta Ring

Upper Receiver

• Profile: M4 Flattop
• Material: Forged 7075-T6 Aluminum
• Finish: Type III Hardcoat Anodized (Mil-Spec)

Bolt Carrier Group

• Profile: M16/Full-Auto
• Steel: 9310 Tool, HPT/MPI-tested
• Exterior: Black Nitride
• Interior: Black Nitride
• Gas Key: Staked
• Charging Handle: Included