Orders ship within 24 hours or by the next business day!

phone: 888-310-0284

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

Out of Stock

Reach out and touch targets at 600, 800, even 1,000 meters. That's why we put together this ultra-accurate 20" .308 side-charging AR kit. With a mil-spec 4150 CMV barrel, free-float lightweight handguard, and a crisp single-stage trigger that breaks like glass, this LR-308 will allow you to make shot groups at distances you were never capable of hitting.

This side-charging rifle kit is compatible with virtually all AR-type .308 components, which are now almost exclusively produced for the DPMS Panther Arms LR-308. 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

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. 

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

.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

Lower receiver not 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.

Barrel Size:
Twist Rate:
Barrel Finish:

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.