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" barrel made of 416R stainless steel, so you can count on your rifle barrel 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. It’s everything you need to build a .308-chambered AR that looks and feels like an original AR-10.
LR-308 Rifle Kit Specs:
Barrel Length: 20″
Barrel Profile: Mid-weight
Gas System: Rifle-length
Barrel Steel: 416R steel
Barrel Finish: Stainless
Chrome Lining: N/A
Muzzle Thread: 5/8-24
Chamber: .308 Winchester
Twist Rate: 1:10
Diameter at Gas Block: 0.125
Gas Block Type: Low-profile
Muzzle Device: Stainless
Receiver Material: Forged 7075 T6
Receiver Type: Low-profile w/ Picatinny
Handguard Type: 15” M-Lok
Bolt Carrier Group Included: Yes
Bolt Steel: Shot-peened, MPI-tested 9310
Bolt Carrier Profile: M16 Full-auto
Charging Handle Included: Yes
LR-308 Rifle Kit Features:
- Compatible with all DPMS .308/LR-308 parts
- Features 416R stainless steel barrel
- Includes all the parts you need to build an LR-308
- Not considered a firearm, no FFL required
- Upper ships pre-built, ready to fire
- Proudly made in the U.S.A.
- Backed by Lifetime Warranty
Barrel: 416R fluted stainless steel, 20” chambered in .308 Winchester. Stainless. Features 1:10 twist rate and mid-length gas system. Includes custom 15” M-Lok handguard, .125″ diameter low profile gas block, and .308 stainless spiraling muzzle brake.
Upper: Mil-spec, made of forged 7075 T6 aluminum. Hard-coat anodized (Type III).
Bolt: Mil-spec, M16 full-auto. Shot-peened, made of 9310 steel. Includes 8620 gas carrier.
80% Lower: Complete with an optional 80% lower. All lowers include mil-spec fittings and hard-coat anodizing.
Lower Parts Kit: Includes mil-spec CMMG lower parts kit. Features six-position M4 buttstock, shorty buffer tube, and .308 buffer.
Charging handle: Standard 7075 Forged charging handle.
Please note: If completing your LR-308 build using the optional 80% lower, please select an 80 lower jig from our available options.
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.