Home Forums Hunting & Shooting AR and Tactical Rifles Sig Brace House Gun

No.

I am referring to the "bound book" all 07 FFLs(manufactures) are required to keep. I have 2 of them and every firearm we manufacture is listed in these "bound book" along with the disposition of said firearm.

When we manufacture a lower it is recorded as a receiver. If we later sell it as a completed rifle it is recorded as a rifle.



Simple back trace.

If the 07 FFL (the manufacturer) logged that gun into his "bound book" as a rifle and you install a Sig Brace and a 12 inch barrel you are in trouble. Has nothing to do with the 4473s.

Your rifle has been recorded as a rifle.

Simple back trace just like when a gun is found at a crime scene.



The 4473 is not the controlling document. If the firearm has ever been logged into any FFLs bound book as a rifle you will have an issue if the ATF does a back trace.

Just saying be careful as this is a very easy check for the ATF and the Sig Brace is sure to draw scrutiny.

I hear you regards the bullpup however for my thinking are they not pretty specialized designs, how do you replace the trigger etc. The Tavor I picked up did not seem like a LW???

FormD has a point regards performance against std pistol rounds. Stolen off the interwebbs below just got me thinking..

9 inch 223 (M193) is 2591FPS with 820ME, 9mm pistol (115grain) is 1250FPS with 401ME, 45ACP (230grain) is 950FPS with 461ME, 9 inch 300BO (110grain) is 2116FPS with 1094ME.

I may be wrong as I often am wrong, yet to my thinker the BO makes good ballistic sense in a pistol.

John a brand new in box stripped lower receiver from the factory is sold as "other" marked in the bound book as "other". It has never been made into anything. It is in the original box that says "lower receiver stripped". The tag on the receiver says NEW. The SN on the box matches that of the enclosed "new" stripped lower. That new stripped lower from the factory when built into a pistol will be a pistol.