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FMK eXtreme AR-15 Stripped Lower Receiver
FMK Firearms AR1 eXtreme AR15 Stripped Lower AR1EXTREME
Superior strength Built with proprietary composite polymer to withstand extreme conditions
Unmatched durability When most lowers dent or break the AR1 eXtreme bounces back to shape
Accepts all standard MIL SPEC uppers up to .50 Beowulf
Compatible with most current AR15 lower parts kits, grips and stocks
Unconditional lifetime warranty
High Impact Proprietary Composite Polymer Frame
Overall Weight 4.3oz
100% USA Made
AR-15 Calibers and Conversion Variants
3 in stock
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