Out of stock
FMK Lower AR-Extreme Polymer AR-15 Lower, Dark Gray - FMKGAR1EGG
Out of stock

FMK Lower AR-Extreme Polymer AR-15 Lower, Dark Gray - FMKGAR1EGG

SKU 516551304235
Model Number FMKGAR1EGG
Brand FMK Firearms
UPC 850979005694
Customers must read Compliance Information before purchasing.

Product Details


Brand: FMK

Model: AR1 Extreme

Type: Stripped Lower Receiver

Frame: High Impact Proprietary Composite Polymer

Caliber: Multi-caliber

Weight: 4.3 oz

Color: Dark Gray


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. The AR1 Extreme is the strongest composite polymer lower on the market today. The foundation is the key to any good project, and on an AR-15, that is the lower receiver.

  • 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 MILSPEC uppers up to.50 Beowulf
  • Compatible with most current AR-15 lower parts kits, grips, and stocks.


Q & A

Retail Stock


If you live in California, please read this notice before ordering.
Must be 21 or older to purchase.

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All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.