CMMG DISSENT Upper Receiver Mk4 300BLK 6.5in 1-7 Twist 5/8x24 Thread Zeroed Linear Compensator Anodized Black 30B0E67-HCA
$1199.95
CMMG DISSENT Upper Receiver Mk4 300BLK 6.5in 1-7 Twist 5/8x24 Thread Zeroed Linear Compensator Anodized Black 30B0E67-HCA. Perfect for your existing Mk4 DI