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FMK Firearms AR-1 eXtreme Stripped Lower Receiver .223 Remington AR-15 Lower Receiver

The FMK Firearms AR-1 eXtreme stripped lower receiver is an AR-15 pattern foundation built from a proprietary high impact composite polymer. Manufactured in the USA, it’s designed to deliver superior strength, durability, and very low weight for custom builds. This stripped lower accepts standard MIL-SPEC AR-15 uppers and is compatible with most current AR-15 lower parts kits, grips, and stocks, giving you a lightweight starting point with lifetime warranty coverage.

Key features

  • Proprietary high impact composite polymer for strength and durability
  • Extremely lightweight at 4.30 oz
  • Made in the USA with a lifetime warranty
  • Stripped design for use with your selected AR-15 lower parts and setup
  • Accepts standard MIL-SPEC AR-15 uppers for flexible build options
  • Custom engraving: "The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants."

Build your next AR-15 with a lightweight, composite-polymer lower receiver designed for rugged use.

FMK Firearms AR-1 eXtreme Stripped Lower Receiver .223: quick facts

What caliber is the FMK Firearms AR-1 eXtreme Stripped Lower Receiver .223?
It is chambered in .223 Remington, 5.56 NATO.
How big and heavy is it?
Weight 4.3 ounces.
What kind of action does it use?
Double Action.
Is it new or used?
New, in the original packaging.
Can I buy it in Utah?
Yes. It ships to a licensed FFL dealer in Utah; you pick it up there after the background check. Rifles and shotguns ship to your chosen Utah FFL dealer for the background check and pickup, with no state waiting period.
Is it in stock?
Yes, at $70.79. Orders leave within 1-2 business days; shipping is free over $999.

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