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CMMG LR-308 Endeavor Mk3 Upper Receiver Assembly 308 Winchester 20″ Barrel M-LOK Handguard



Product Information

Cartridge 308 Winchester
Color Armor Black
Finish Cerakote
Material Aluminum
Weight 7.4 Pound
Barrel Length 20 Inches
Twist 1:10 Inches
Threads 5/8″-24
Barrel Contour Heavy
Barrel Finish Black Salt Bath Nitride
Chrome Lined No
Gas Block Diameter 0.936 Inches
Gas System Length Rifle
Upper Receiver Type A3 Flat-Top
Barrel Material 416 Stainless Steel
Handguard CMMG EML15 M-LOK
Bolt Carrier Assembly Included Yes
Country of Origin United States of America
Compatible With
AR-10, LR-308

Delivery Information

Shipping Weight

7.955 Pounds

Product Overview

The CMMG LR-308 Endeavor is for shooters and hunters who need to reach out to extended ranges. The Endeavor is built to maximize long-distance precision. The Endeavor features quality furniture and high-performance components to maximize your marksmanship. The Endeavor offers a forged 7075-T6-AL M4 upper receiver assembly with a bolt carrier group, and a Cerakoted receiver and handguard. The Endeavor is configured perfectly to suite your long-range needs.


  • Forged 7075-T6 AL M4 type upper receiver
  • Cerakoted Receiver and Hand Guard
  • Complete Bolt Carrier Group Included
  • CMMG Zeroed Ambidextrous Charging Handle


Made In United States of America


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