5.56 AR 15 Rifle Kit – 16″ Phosphate Barrel (Classic A2 Handguard), 1:7 Twist Rate
About this product
With so much “tacti-cool” stuff hitting the black rifle market, there’s nothing wrong with taking a step back and building a truly classic shooter. This Classic AR-15 Build Kit features an old school A2-style upper, complete with an A2 front sight post, A2-style “bird cage” flash hider, and traditional forged M4 flattop upper.
Inside, you’re getting a mil-spec lower parts kit and a chrome-lined M16 bolt carrier group with staked gas key and M4 feed ramps. The 4150 CMV barrel promises MOA accuracy with bomb-proof reliability. A classic M4, six-position buttstock and buffer are included.
Barrel
- Chamber: 5.56 NATO
- Contour: M4/Government
- Length: 16”
- Twist Rate: 1:7
- Gas System: Mid-length
- Gas Block: A2-type FSB
- 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: 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: Carpenter No. 158 (Mil-Spec)
- Exterior: Black Nitride
- Interior: Black Nitride
- Gas Key: Staked
- Charging Handle: Included
Lower Receiver Parts
- Buffer System: Mil-spec, Carbine
- Buttstock: Mil-spec, M4-type
- Parts Kit: Mil-spec, single-stage
WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov
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