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Firearm Lower Receivers

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Superior strength Built with a proprietary composite polymer to withstand extreme conditions. Unmatched durability When most lowers dent or break the AR1 eXtreme bounces back to shape. Extremely lightweight 4.3oz. Accepts all standard MIL SPEC uppers up to .50 Beowulf. Compatible with most current AR15 lower parts kits, grips and stocks.
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