F1 Engineering - Gun Shop


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                  GUN SHOP

We are a 07 FFL manufacturer, gunsmith and gun dealer

We are licensed and registered with the California Centralized List of Firearm Dealers


                                     PLEASE NOTE: A Federal Firearms License is REQUIRED for the purchase of any Complete Weapon or Lower Receiver. You will need to make arrangements with your local FFL Gun Dealer and then contact us with his information. Any other firearms parts or accessories shown in this website may be purchased directly.

We offer the lower receivers in two calibers, .223 Remington / 5.56 x 45 mm and .308 Winchester / 7.62 x 51 mm as well as "80%" models of both for those who wish to finish their own rifle.

The .223 and .308 finished receivers are available in standard bead blast finish or in hard type 3 black anodize at no extra cost.

The "80%" lower receivers are available only in the bead blast finish.

The lower receivers all come with the standard ribbed magazine cover and all special screws and keys. The optional cover featuring a picatinny rail is available for all models.

Please note that, until our production ramps up supplies will be very limited, and we can only ship the lower receivers to a FFL gun dealer in your state.

You will need to make arrangements with your local FFL gun dealer and then contact us with his information.

The "80%" lower receivers do not require this or any other paperwork and can be shipped directly to you.


Lower Receivers      Upper Barrel Assemblies      Custom Rifles



 F1 Engineering
Email: sales@f1engineering.com
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