CMMG LR-308 Resolute 100 Mk3 Upper Receiver Assembly 308 Winchester 16″ Barrel M-LOK Handguard. CMMG’s Resolute is engineered with purpose for those who refuse to compromise on quality. The Resolute features a 16-inch barrel and designed for balance, accuracy and maneuverability. The Resolute 100 offers a forged 7075-T6-AL M4 upper receiver assembly with a bolt carrier group, and a Cerakoted receiver and anti-jam handguard. Whether you’re defending your family or looking to bring out your best at the range, the Resolute keeps going when you need it most.


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

Made In United States of America


Product Information

Cartridge 308 Winchester
Color Armor Black
Finish Cerakote
Material Aluminum
Weight 5.8 Pound
Barrel Length 16 Inches
Twist 1:10 Inches
Threads 5/8″-24
Barrel Contour Medium
Barrel Finish Black Salt Bath Nitride
Chrome Lined No
Gas Block Diameter 0.75 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 6.440 Pounds
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