Take your shooting game to the next level and really reach out to some of the farther ranges with this LR-308 build kit. This build kit comes with a parkerized 20" barrel made of 4150 chrome moly vanadium steel, so you can squeeze every last bit of accuracy out of your rifle possible.
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: 4150 Chrome moly vanadium
Barrel Finish: Parkerized
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: A2 "birdcage" style
Receiver Material: Forged 7075 T6
Receiver Type: Low-profile w/ Picatinny
Handguard Type: Custom, super-slim 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 match-grade 416R stainless 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: 4150 Chrome moly vanadium, match-grade 20”, chambered in .308 Winchester. Parkerized. Features 1:10 twist rate and rifle-length gas system. Includes custom 15” M-Lok handguard, .125″ diameter low profile gas block, and .308 A2 "birdcage" style 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.