Build a bench-ready, long-range AR-10.
This 20" SOCOM-barreled .308 AR build kit provides the highest accuracy possible, in an affordable, prebuilt pacakage. With a quality, mil-spec lower parts kit and assembled upper, you'll be sending sub-MOA shot groups downrange after assembling your lower.
Paired with this ready-to-fire upper assembly is a quality lower parts kit and .308 buffer assembly, compatible with any "retail"-bought .308 AR lower receiver, or fabricated .308 80% lower.
Barrel
- Chamber: .308 Winchester
- Contour: SOCOM
- Length: 20”
- Twist Rate: 1:10
- Gas System: Rifle
- Muzzle Threads: 5/8x24
- Material: 4150 CMV
- Finish: Parkerized
- Process: Button Rifled
- Lining: None
- Muzzle: A2 "Birdcage" Flash Hider
Handguard
- Attachment System: 17" M-LOK
- Finish: Type III Hardcoat Anodized (Mil-Spec)
- Top Rail: M1913 Picatinny
- Material: Billet 6061-T6 Aluminum
- Attachment: Barrel Nut
Upper Receiver
- Profile: LR-308 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: Parkerized
- Gas Key: Staked, Chrome-lined
- Charging Handle: Included
Lower Receiver Parts
- Buffer System: Mil-spec, .308 "Shorty" Buffer
- 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
Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or "assault weapons" (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily.
GunBuilders.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.
