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LR-308 Upper Assembly - 18” Parkerized, SOCOM Barrel, 1:10 Twist Rate with 15” M-Lok Handguard

Was: $515.99
Now: $429.99
SKU:
UA308MSC18110P-15MSR
Availability:
In Stock! Fast Shipping!

Are you ready to step up your .308 long-range game? Then snatch up this LR-308 upper assembly. This upper assembly provides an 18" mid-weight SOCOM-profiled barrel made from button-rifled 4150 CMV for utter accuracy.

It also comes with a 15" M-Lok handguard for mounting a bipod, foregrip, or whatever else. All you'll need after assembly is either backup sights or optic of your choice, mags, and ammo. Get serious about your .308 shooting. Get this kit and start reaching out to 600, 700, or 800 meters.

What’s Included

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

LR-308 Upper Assembly Specs

Barreled uppers are assembled in-house before shipment.

Barrel

  • Chamber: .308 Winchester
  • Contour: SOCOM
  • Length: 18”
  • Twist Rate: 1:10
  • Gas System: Rifle
  • Gas Port: 0.750”
  • Muzzle Threads: 5/8x24
  • Material: 4150 CMV
  • Finish: Parkerized
  • Process: Button Rifled
  • Lining: None
  • Muzzle: Twisted A2 “Birdcage” Flash Hider

Handguard

  • Attachment System: 15" M-Lok Free-Float
  • Finish: Type III Hardcoat Anodized (Mil-Spec)
  • Top Rail: M1913 Picatinny
  • Material: Billet 6061-T6 Aluminum
  • Attachment: Barrel Nut 

Upper Receiver

  • Profile: .308 Flattop w/ Picatinny
  • 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

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 Restrictions

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.

Platform:
AR10
Caliber:
.308 Winchester
Barrel Length:
18"
Barrel Finish:
Parkerized
Twist Rate:
1/10
Handguard Type:
Free-float
Handguard Length:
15"
Gas System Length:
Rifle-length

We are a national retailer of individual components and not all products depicted on this website are legal in every state. Shipping of various products found on this website are prohibited to some states (such as California, Connecticut, District of Columbia, Hawaii, New Jersey, New York, Rhode Island, and Washington). The information, pictures, text or products presented on this website are not a representation by us, and should not be understood by you, that any product or completed firearm is legal to assemble or own in your state of residence. We encourage each and every builder to perform their own research about the state and federal laws that apply to them. It is your responsibility to understand the law and we encourage you to consult with an attorney or your local ATF representative.