Rip Your Favorite Stock with CMMG Fastback Receiver Extension
By Hrachya H
CMMG RipStock system allows quickly deploying the collapsed AR-15 stock to a preset length in a matter of just pulling the stock back, without a need to press a lever or button to unlock it first. The core of the RipStock system is the Fastback Receiver Extension that thanks to the shape of the stock […]
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Source:: The Firearm Blog
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