FMK AR1 Stripped AR-15 Mil-Spec Lowers

AR1 eXtreme

Multi-Caliber, Mil-Spec, AR15 Lower Receiver, manufactured in the USA of a high-impact proprietary composite polymer.  This state-of-the-art polymer allows for superior strength and unmatched durability and is extremely lightweight, only 4.3oz. The AR1 eXtreme is the most robust composite polymer lower on the market today. The key to any good project is the foundation; on an AR15, that is the lower receiver. The Ar1 eXtreme comes with a lifetime warranty, and of course, it’s Proudly American.
Highlights:

  • Superior strength – Built with proprietary composite polymer to withstand extreme conditions.
  • Unmatched durability – When most lowers dent or break, the AR1 eXtreme returns 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. The AR1 Lower Receiver is not designed for 9mm carbine builds.
  • Designed to be used as an AR15 rifle. Not recommended to be built out as an AR pistol.
  • Unconditional lifetime warranty.
  • Custom engraving – “The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.”

Specifications for AR1 Extreme:

  • Frame: High Impact Proprietary Composite Polymer
  • Caliber: Multi-Caliber
  • Size: MIL-SPEC
  • Weight: 4.3oz
  • Colors: Black and Dark Earth
  • 100% USA Made

MSRP: $59.95

Find an AR-1 Extreme Lower at a Dealer Near You

Color Item ID Buy
Black FMKGAR1E Buy Now
Dark Earth FMKGAR1EDE Buy Now
Dark Grey FMKGAR1EGG Buy Now
Burnt Bronze FMKGAR1EBRT Buy Now
OD Green FMKGAR1EOD Buy Now
Pink FMKGAR1EPK Buy Now
Blue Jay FMKGAR1ETB Buy Now
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FMK does not market nor sell regulated items to individuals who are underage.

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