Ships to FFL
The FMK Firearms AR1 eXtreme stripped AR-15 lower receiver is manufactured in the USA from a high impact proprietary composite polymer, delivering extremely lightweight durability at 4.3 oz. Built as a mil-spec AR-15 foundation, it accepts standard MIL-SPEC uppers and is engineered for long-lasting reliability with compatible lower parts kits.
Key features
- Stripped AR-15 lower receiver built on a mil-spec compatible platform
- Proprietary composite polymer construction for superior strength and durability
- Extremely lightweight design at 4.3 oz
- Accepts standard MIL-SPEC uppers up to .50 Beowulf when paired with the correct upper configuration
- Compatible with most current AR-15 lower parts kits, grips, and stocks
Build your next AR-15 project with the FMK AR1 eXtreme polymer foundation and pair it with your preferred upper and components.
FMK Firearms AR1 eXtreme .223 Remington Black AR-15 Lower: quick facts
- What caliber is the FMK Firearms AR1 eXtreme .223 Remington Black AR-15 Lower?
- It is chambered in .223 Remington, 5.56 NATO, .50 Beowulf.
- How big and heavy is it?
- Weight 4.3 ounces.
- What kind of action does it use?
- Single Action.
- What sights and finish does it have?
- finish: Blue/Black.
- Is it new or used?
- New, in the original packaging.
- Can I buy it in Texas?
- Yes. It ships to a licensed FFL dealer in Texas; you pick it up there after the background check. Texas buyers pick this up at a local dealer after a NICS check, with no permit and no wait. Legal for Texas deer and hogs within TPWD rules.
- Is it in stock?
- Yes, at $68.99. Orders leave within 1-2 business days; shipping is free over $999.
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