Cmmg 55DA296 Barrel Nut AR-15
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CMMG 55DA296 Mil-Spec
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Description
Description
This MK9 bolt assembly is made of 8620 steel and has a Phosphate finish.
Specifications
- Short Stroke Gas Piston Gas System (Rifle Length)
- 18.6″ Barrel Length ( Mid-Weight style, non-fluted)
- 1:8 Twist Rate Rifling
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