If you are looking for a starting point on the road to building a new rifle, the FMK Firearms AR1 eXtreme stripped AR-15 lower receiver is that starting point. Made from space age materials, the AR1 eXtreme lower is made from an impact resistant polymer blend selected specifically for the construction of firearms. The lower is so strong it can be used with any mil-spec upper chambered in everything from .22lr all the way up to the powerful .50 Beowulf.
FMK Firearms is known for not cutting corners and producing a quality product at a price you love. Not only is the AR1 eXtreme lower perfect for most rifles, but it is also ideal for lightweight builds thanks to it weighing in at a scant 4.3 ounces. All that is left to do is pick out what standard AR-15 lower parts kit you want and get started on the rifle of your dreams!
Specifications and Features:
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