Agrivted with the form 1 process, I have been considering a Sig brace for my Pap in 7.62. Does anyone know if it's still a pistol if you mount the brace on a pistol buffer tube that is hinged. I'm sure it's a dumb question but I figured I'd start here.

Yup. Its still a brace. Its perfectly legal.

Of course, once you shoulder that brace you have an unregistered SBR, so why not just do the form 1 and use a real stock instead.

Because it's hinged?

No, because ATF changed their mind about Sig Braces and said it is illegal to shoulder them.

http://www.ar15.com/forums/t_1_5/1700566_Sig_Brace_ruled_ILLEGAL_TO_SHOULDER_by_ATF.html

Spend your money on the Tax Stamp instead of the worthless Sig Brace.

Get the proper triangle stock for a krink build.....

Op. I agree, Short AKs need to be SBR'd, they just looks so sexy. For an AR however the brace looks great.

In regards to the "Its illegal if you shoulder it" people. Did you get a letter from the ATF? Because we all know what the ATF says about their letters. Also you may note the word in use in the above letter is "Oppinion' and we all know what opinions are like...

I did not "get a letter from ATF", however It was posted as an open letter on ATF's industry page (see here). Not here to debate this issue, just give the OP all of the info so he can make his own decision. With that, I am out of this thread.

Open letter means absolutely nothing bud. You came here to be the policeman, nothing in this thread said anything about shouldering a brace. There is no LAW against it, and the brace is legal to own. Havee fun annoying brace users at the range.

Posting this question in this forum spells out what the intent is in my eyes.  I think the triangle stock is the best look for a krink looking build.  I'd just do the form 1 and be done with it and have a much more functional gun.

Your eyes and the law are two very different things. I agree he should just SBR it, but nothing wrong with using a brace either if he so chooses....!!!!!!!!!!!!BUT DONT SHOULDER IT OP!!!!!!!!!!!!!!!! OR THE ARFCOM RANGEMASTERS WILL TELL YOU YOURE BREAKING A LAW THAT DOES NOT EXSIST....

 
The ATF says it is a stock if shouldered.  I won't argue any further. No different than an M4 stock.  Even if you beat the rap you won't beat the ride.  

With that logic, then so is your buffer tube...Or your pistol is an AOW when holding it with 2 hands. Once again, there is no law backing up anything the ATF said in their "open letter". The ATF enforces law. They do not make it. WHich is why Sig braces are still for sale today, because they know all they can do make an opinion.

Sorry, got a little carried away there.

I find the brace to be too "thick" when folded.  Didn't like it enough to keep it in that configuration.

The SBX and newer models supposedly coming out are much thinner and better than the SB15.

But they changed their minds - again. ATF LETTER FROM MARCH 2014

But they changed their minds - again. ATF LETTER FROM MARCH 2014

(Sorry about the double post. Can't figure out how to delete it.)  

Nov 2014 comes after Mar 2014, just saying

You're doing great Padawan. You have managed to spread misinformation in not only this thread, but two others as well.

Thread 1

Thread 2

Shockwave Technologies Blade stabilizer is better than the SB Tactical "strap on"  braces but still falls in the same category with the ATF. Comes with ATF approval letter, NO STRAP needed, thinner, better looking...
Shockwave Technologies Blade

You are very wrong here.

First, Sig braces are still for sale because they are perfectly legal if used in the manner they were approved for.



Second, the BATFE has the authority to legislate, adjudicate, and execute law. Do yourself a little research on Administrative Law.  
ATF rules, i.e. their administration of the GCA/NFA , are law in the same way that IRS rules are law (tax laws). These change year to year, even quarter by quarter, do you think these are legislative laws? Do you truly think Congress can act that quickly?
Regardless of what you think or read on the interweb the open letter stating shouldering of any otherwise legal brace redesigns it as a stock is and will remain law unless it is invalidated by  Judicial review.



Sig cannot do anything because they do not sell it for any other reason then the one in which it was designed and approved for. Any move they make against this letter or the ATF will show their intention of selling it to be used as a stock. They are not going to do that. They can and have stated publicly that they do not agree with the decision but that is all they will ever do.