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LR-308 Rifle Kit - 20” Parkerized Barrel, 1:10 Twist Rate with 15” M-Lok Handguard



Smack targets out to 600, 800, even 1,000 meters, and do it with this ultra-accurate 20" .308 AR kit. This LR-308 kit comes with a mil-spec 4150 CMV barrel, free-float lightweight handguard, and a crisp single-stage trigger that breaks like glass, so you can make shot groups at distances you were never capable of hitting.

This rifle kit is compatible with virtually all AR-type .308 components, which are now almost exclusively produced for the DPMS Panther Arms LR-308 (DPMS gen 1). In short, this kit represents an affordable alternative to buying an expensive ArmaLite AR-10 with equal performance. For an in-depth comparison of the AR-10 and LR-308, read this. Pair your rifle kit up with an 80% .308 jig and grab the optional 80% lower, and you can go from a box of parts to a working rifle in a single day.

LR-308 Rifle Kit Features:

  • Compatible with all DPMS gen 1 .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

.308 Kit Specifications:

  • 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
Made in the USA  Lifetime Warranty

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

80LowerJig.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.

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.