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The FMK AR1 eXtreme Polymer AR Lower: Strong and Light

The FMK AR1 eXtreme Polymer AR Lower: Strong and Light

February 13, 2018 by Mark Miller Leave a Comment

The FMK AR1 eXtreme is a multi-caliber, Mil-Spec, AR15 Lower Receiver, manufactured in the USA of a high impact proprietary composite polymer. The key to a good AR build is the lower receiver and the AR1 eXtreme is the strongest composite polymer lower on the market. Made in America, it comes with a lifetime warranty.

The FMK AR1 eXtreme Polymer AR Lower: Strong and Light

The big news is a weight savings of 4.4 ounces. The AR1 eXtreme weighs in at 4.3oz.  A milspec lower weighs 8.7 oz. If you are looking for a light weight build, this is a great place to start.

I believe that a high strength polymer AR lower will build a great gun. The precision is evident through the entire lower and the built in trigger guard makes the build that much easier. I will be putting this lower into a build which will be light but I am not going for an extreme light weight build.

The FMK AR1 eXtreme Polymer AR Lower: Strong and Light

Highlights:

  • 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.
  • 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.
  • Unconditional lifetime warranty.
  • Custom engraving – “The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.”
The FMK AR1 eXtreme Polymer AR Lower: Strong and Light

The AR1 eXtreme has a metal plate embedded under the selector on the right side of the receiver with the serial number.

Specifications for the AR1 eXtreme:

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

MSRP: $59.95

Download “AR1 eXtreme” AR1eX-2.pdf  the

You can learn more about AR1 HERE

If you are building a light build, there is a handy on-line AR weight calculator HERE

 

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Filed Under: Firearms Technology Tagged With: AR1 eXtreme, AR15 stripped lower, arms guide, FMK, FMK AR1 eXtreme Polymer AR Lower, lightest ar lower, lightweight ar build, mark miller, polymer ar lower, TAG, The Arms Guide

About the Author

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Mark Miller is a Green Beret who served in Afghanistan and a number of other live fire locations. He's a poet-warrior in the classic sense, a casual hero and a student of science.

See All Mark Miller Articles

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