Build your LR-308 rifle with this kit, and then really stretch out with your shots fired and go the distance. Up close, they'll be blinded by the luster of your stainless steel barrel and compensator, while off in the distance they'll hear the clang of your lead slamming steel. This build kit comes with a 20" match barrel made of416R stainless steel, so you can count on it lasting the entire life of your LR-308.
A custom, free-float M-Lok handguard with low-profile gas system improves accuracy and provides plenty of rail estate for your favorite accessories and attachments. The inner workings are handled by a quality, mil-spec CMMG lower parts kit with a crisp, single-stage trigger. Out back, you’ll enjoy a classic six-position M4 buttstock paired with a .308-specific short buffer and spring.
What’s Included
This kit is not a firearm. It includes an assembled upper receiver, bolt carrier group, lower parts kit, and buffer assembly with buttstock. It does not include the component to make a firearm: A stripped lower receiver. Pair this rifle kit with an AR-10/LR-308 80% lower receiver and AR-10/LR-308 jig to fabricate a receiver, sold separately.
Here's the beginner's guide to 80% lowers.
.308 AR Rifle Kit Specs
Barreled uppers are assembled in-house before shipment.
Barrel
- Chamber: .308 Winchester
- Contour: Mid-weight
- Length: 20”
- Twist Rate: 1:10
- Gas System: Rifle
- Gas Port Barrel Dia: 0.125”
- Muzzle Threads: 5/8x24
- Material: Match-Grade, 416R Crucible Stainless
- Finish: Stainless
- Process: Button Rifled
- Lining: Stainless
- Muzzle: Twisted SS Flash Hider
Handguard
- Attachment System: 15" M-Lok
- Finish: Type III Hardcoat Anodized (Mil-Spec)
- Top Rail: M1913 Picatinny
- Material: Billet 6061-T6 Aluminum
- Attachment: Barrel Nut
Stripped 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: Phosphate Coating
- Interior: Chrome-Lined
- 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
Receiver sold separately
No FFL or serialization is required to fabricate a receiver under federal law. However, state laws vary. Some states require serialization or have banned 80% lowers and gun-making kits. We encourage each and every builder to perform their own research about the state and federal laws that apply to them.
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.
80-Lower.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.
