Question 1

Are your AR-15 80% Lowers Mil-Spec?

Accepted Answer

Our receivers completely from billet aluminum for that very reason. We’ve come to find over time that forgings may not meet mil-spec, especially in width. Almost all of the dimension specifications for a lower are to +/- 0.005″, with some being even tighter. But some are looser. The forgings sometimes are out of tolerance in thickness in that they can be -0.015″ on the FCG area, and +0.015 on the magazine well area. This introduces machining issues with centering both the FCG pocket and mag-well. Our drill press style jigs are designed for those features to be nearly exact inside the machining tolerances stated above, so our jigs may not be compatible with certain forgings.

We machine our billet aluminum lowers to tolerances tighter than mil-spec and standard machining of +/-0.005″, and since we machine the entire lower, faces and all, we hold those tighter tolerances.

Question 2

Are AR-15 80 Percent Lowers Legal to Own and Build?

Accepted Answer

Per the Gun Control Act of 1968 (GCA) – Yes, in every state in the U.S. it is legal to build your own firearm for personal use as long as you can legally own a firearm. But there are some states such as New Jersey that have “Assault Weapon” bans in place so you can’t build a firearm that would meet those criteria, but you can still build a handgun or a 10/22.

Question 3

Will I need an FFL or to do a transfer?

Accepted Answer

You do not need a FFL to complete your AR 15 80 lower, nor will you need to do a transfer to yourself when finished. And you won’t need an FFL to sell the lower later if you decide as long as you didn’t complete the lower for the purpose of reselling.

Question 4

Are your AR 80 Lowers made from 6061 or 7075 Aluminum?

Accepted Answer

We build all of our lowers in 6061-T6 as standard, but realize that there are customer who prefer 7075-T6 so we make that an occasional option. 7075 can increase the material cost substantially over 6061 so we have to charge accordingly for that material.

AR 15 Lower Receivers

Anodized Ultra-LW Skeletonized AR 80% Receiver Set

Cerakote Ultra-LW Skeletonized AR 80% Receiver Set

Ultra-LW Skeletonized AR-15 Receiver Set

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