The cmmg's resolute upper receiver group allows you to pair hornadys 6mm arc caliber with your existing ar15 lower for superior function and accuracy at extended ranges.
Receiver Finish: Black Hard Coat Anodized Caliber: 6mm ARC Sights: None, Optic Ready Barrel Length: 16.10" Barrel Material: 416R Stainless Steel Twist: 1:7.50" Barrel Description: Medium Taper Barrel Finish: Black Nitride Handguards: CMMG RML15 M-LOK Barrel Length Range: 16" to 16.99"
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