F-1 Firearms AR-15 Gun Builder Lower Parts Kit

Manufactured by F-1 Firearms
Manufactured by F-1 Firearms
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NOTE: Limit 1 per household. Quantities exceeding 1 will not allow checkout.

We are fully staffed and processing orders. Standard orders are shipping in approximately 1 business day or less. FFL orders take approximately 5 business days if you can provide us an actively receiving FFL location.



The F-1 Firearms AR-15 Gun Builders Kit comes with everything you need (except fire control group) to finish building your lower receiver but comes with a few upgraded parts. The safety selector is an ambidextrous design with 1 long lever and 1 short lever. The takedown pins are extended to make it easier to pull your rifle apart without need the tip of a bullet. Finish your build with the F-1 Firearms Lower Parts Kit.

The Lower Parts Kit Includes:
  • 1 bolt catch
  • 1 magazine catch
  • 1 pivot pin,
  • 1 takedown pin,
  • 1 magazine catch spring,
  • 2 trigger pins,
  • 1 buffer retainer,
  • 1 magazine release button,
  • 1 bolt catch spring,
  • 1 buffer retainer spring,
  • 1 selector hard detent,
  • 1 selector soft detent,
  • 2 take down/pivot detents,
  • 1 bolt catch plunger,
  • 1 bolt catch screw,
  • 1 selector detent spring,
  • 1 receiver pivot detent spring,
  • 1 take down detent spring,
  • 1 safety selector assembly (1 long paddle, 1 short paddle, 1 tumbler and 2 screws)

F1-Firearms is a Texas based manufacturer of high quality AR-15 and AR-10 rifles. They are known for their fully skeletonized receivers that reduce weight without sacrificing strength and highly accurate 416R stainless steel barrels. Whether you are building your own or buying a prebuilt, F1-Firearms has the competition rifle for you.
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BrandF-1 Firearms
Fire Control GroupNone

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see www.p65warnings.ca.gov

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