CMMG Receiver Extension & Stock Kit with 5-Position RipStock

The CMMG Receiver Extension & Stock Kit provides a retractable buttstock with ultra-fast deployment. Included is an adjustable 5-position RipStock, adjustable position tube, a P3 indexing screw, spring and buffer, ambidextrous sling plate, and a castle nut. Get the best price online from GrabAGun today!
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