Shop 4,464 Deals on Upper Receivers

CMMG UPPER GROUP DISSENT Mk4 5.56mm 16.1in Empire Profile Non-Threaded Charcoal Green

CMMG Mk4 5.7X28mm Resolute Upper Group Receiver 16.1in Midnight Bronze

CMMG Mk4 5.7X28mm Resolute Upper Group Receiver 16.1in Coyote Tan

CMMG MkGs .40 S&W Banshee Upper Group Receiver 5in 1-16 Twist 0.578 X 28 TPI 13.7in Charcoal Green

CMMG Mk3 .308WIN Banshee Upper Group Receiver 12.5in Coyote Tan

CMMG Mk4 .300BLK Banshee Upper Group Receiver 12.5in Midnight Bronze

CMMG Mk4 .300BLK Banshee Upper Group Receiver 12.5in Charcoal Green

CMMG Dissent Mk3 6.5mm Creedmoor 20 inch Upper Receiver 1-8 Twist 5/8 x 24 CMMG ZEROED Muzzle Brake Cerakote/Hard Coat Anodized Midnight Bronze

CMMG Dissent Mk3 6.5mm Creedmoor 20 inch Upper Receiver 1-8 Twist 5/8 x 24 CMMG ZEROED Muzzle Brake Cerakote/Hard Coat Anodized Coyote Tan

CMMG Dissent Mk3 8.6 Blackout 16.1 inch Upper Receiver 1-3 Twist 5/8 x 24 CMMG ZEROED Muzzle Brake Cerakote or Hard Coat Anodized Tungsten

CMMG DISSENT Upper Receiver Mk4 300BLK 10.5in 1-7 Twist 5/8x24 Thread Zeroed Linear Compensator Sniper Grey

CMMG Mk4 5.7X28mm Resolute Upper Group Receiver 16.1in Sniper Grey

CMMG UPPER GROUP DISSENT Mk4 5.56mm 16.1in Empire Profile Non-Threaded Midnight Bronze

CMMG Dissent Mk3 .308 Winchester 16.1 inch Upper Receiver 1-10 Twist 5/8 x 24 CMMG ZEROED Muzzle Brake Cerakote/Hard Coat Anodized

CMMG Dissent Mk3 .308 Winchester 16.1 inch Upper Receiver 1-10 Twist 5/8 x 24 CMMG ZEROED Muzzle Brake Cerakote/Hard Coat Anodized Tungsten

CMMG Mk4 6mm ARC Resolute Upper Group Receiver 16.1in Titanium

CMMG Mk4 5.7X28mm Resolute Upper Group Receiver 16.1in Titanium

CMMG Mk4 5.56X45mm NATO Banshee Upper Group Receiver 12.5in Charcoal Green

CMMG Mk4 5.56x45mm NATO Endeavor Upper Group Receiver 18in Sniper Grey

CMMG Mk4 5.56X45mm NATO Resolute Upper Group Receiver 16.1in Sniper Grey

CMMG Mk3 .308WIN Endeavor Upper Group Receiver 20in Titanium

CMMG Dissent Mk3 8.6 Blackout 16.1 inch Upper Receiver 1-3 Twist 5/8 x 24 CMMG ZEROED Muzzle Brake Cerakote or Hard Coat Anodized Armor Black

CMMG Dissent Mk3 8.6 Blackout 12.5 inch Upper Receiver 1-3 Twist 5/8 x 24 ZEROED Linear Compensator Cerakote/Hard Coat Anodized Titanium

CMMG Dissent Mk4 5.56mm 14.5in P&W Upper Group 1-7 Twist 1/2 X 28 TPI 23.6in .750in Sniper Grey