Detachable stock on semi SBR

[7.62bthp]

What is the best way to keep the firing fin spring captive in the receiver when the stock is detached on closed bolt semi? I just completed a fixed stock mod, similar to Teps but I went a little different path, and when I was installing the bracket, the spring poked out...If the detachable set up was used, the stock would have to stay on....

Assuming, of course, that all NFA rules are followed pertaining to said construction of a legal SBR...:)

[UZI SBR AWC]

If you dont pull the striker back to set on the sear, the spring will only be a nub protruding out the hole. I have had mine sticking out the hole so far that the fire pin actually came out the hole on rear of bolt, then I have to tale cover off and set fire pin back in the hole of the bolt.

[watchin]

Yes, the spring does come out through the mounting hole if you take the stock off. If your face is close to it when you do this you will remember it for a long time. The quick detachable stock was really not designed for the SA UZI since there is no provision to stop the spring from extruding out of the backplate once the stock is removed. I am sure someone has figured a way to do this but i haven't seen it posted here.
-watchin-

[7.62bthp]

Back up plate on the buffer?

[jonathon]

I just had a thought about this..

What about drilling out the button that locks into the receiver on the bracket and then turning down the OD a bit on the nut that the folder uses? You'd have to trim the button too I imagine(Or you could bore out the buffer a bit too if you wanted to).

Not like I could actually use it here... only reason I thought of it is 'cause I am modifying a surplus stock to be permanent on my carbine.

Just my observations from looking at it... worth about as much as you paid for them ;)

[Quarterbore]

I would like to see some photo of the issues...

I have a Vector Semi but I have not shot it or really even handled it much but when I finish paying off a couple of my latest NFA MG purchases I would like to SBR it and I think I would like to have the option of swaping stocks like I do with the Vector SMG.

[jonathon]

If you take the stock off as well as the "nut" that the stock screws into, the striker spring won't have anything to rest against and will be going out the hole.. can't fire it without a stock on it.

I'll take a pic of my gun later today when I get home, don't have my SMG stock yet though.

[7.62bthp]

I plugged a spare buffer with a 44 mag case trimmed to 3/8" (to include the case head rim) to plug the hole in the buffer. Recessing the buffer .125 seemed to give the clearance. The end result is a "floating" backplate for the spring only.....I'm a little timid about checking it out as at this point, as I have the stock stored offsite until my stamp arrives.....Scheming the buffer/spring mechanics is one thing, constuctive possesion is another.

[rlowe]

OK Guys:

Here is a question for the detachable stock semi auto. what if you were to buy a Vector FS SA pistol and then put a 16" barrel and a removable stock on it. with the stock removed it would revert to a pistol and with the stock on it would be a rifle. Just a thought.

Richard

[7.62bthp]

It would be an NFA violation. You can't stock a pistol. Once a pistol, always a pistol and vica-versa

[rlowe]

It would be an NFA violation. You can't stock a pistol. Once a pistol, always a pistol and vica-versa

I am not saying you are wrong and I'm not trying to start an argument, but can you show me the code. How do they get away with putting 16" barrels and shoulder stocks on single actions? I have never seen a prohibition on shoulder stocked pistol only short barrel rifle which is usually the case when you put a shoulder stock on a pistol. True you can not make a pistol from a rifle it becomes any other weapon. But I have never seen a prohibition the other way.

Richard

[solartj]

I am not saying you are wrong and I'm not trying to start an argument, but can you show me the code. How do they get away with putting 16" barrels and shoulder stocks on single actions? I have never seen a prohibition on shoulder stocked pistol only short barrel rifle which is usually the case when you put a shoulder stock on a pistol. True you can not make a pistol from a rifle it becomes any other weapon. But I have never seen a prohibition the other way.

Richard

This might help you understand :

http://www.stephenhalbrook.com/tc.html

[rlowe]

OK:

So it says;

United States v. Thompson/Center Arms Co.

On January 13, 1992, Stephen P. Halbrook argued in the Supreme Court of the United States on behalf of Thompson/Center Arms Company concerning whether certain pistol and rifle components constituted a short-barreled rifle subject to the registration and taxation requirements of the National Firearms Act, Chapter 53 of the Internal Revenue Code. The Court rendered a favorable decision, holding that the Act provided criminal penalties and thus due process required that the Act must be construed narrowly according to the rule of lenity. Consquently, the components were not subject to the Act. The opinion, United States v. Thompson/Center Arms Co., 504 U.S. 505 (1992), follows below:



--------------------------------------------------------------------------------
Read the Opinion
--------------------------------------------------------------------------------

Analysis of the Supreme Court Opinion
in Thompson/Center Arms

by Stephen P. Halbrook, Counsel for Thompson/Center Arms

On June 8, 1992, the U.S. Supreme Court ruled that the Contender pistol and carbine kit are not a short-barreled rifle under the National Firearms Act, 26 U.S.C. §5845(a)(3). This means that a consumer may possess the pistol with its 10" barrel and may use the kit parts to make a rifle with the 21" barrel, as long as the shoulder stock is not assembled onto the receiver at the same time as the 10" barrel.

How is a FS SA Uzi Pistol different than a Thompson Contender?

Richard

[7.62bthp]

Personally I would not stock a pistol. I can't cite precedence, but a review of the link in the last post confirms....

YOU MAY BEAT THE RAP, BUT YOU WON"T BEAT THE RIDE....

I'll move forward with my project under State and Federal guidelines, and not lose sleep.

No challenge taken, Richard. I caution anyone who intends to challenge the gray areas in our laws. It never seems to work out in a fun way! Could you imagine the expense and time to get your case over a silly firearm to the Supreme Court? Wow...!!!

I have an old Browning Hi Power with tangent sights and the stock mount groove on the frame. It would be neat to have the factory stock, but I guess I'm just a chicken shit!

[rlowe]

762:

I understand and sympathize with the fear. It is a shame that we have to be fearful of the ATF. I am in a little different situation as I am a police officer and I hope that the ATF would be hesitant to make an arrest without a clear cut violation. I had a nice broom handle and stock at one time and didn't loose a minutes sleep over it, but it went in a trade long ago. I wish I'd have kept it. It would be a simple matter to get a letter from ATF on the Uzi pistol to carbine conversion. Although it could cause them to close that loop hole which now definitely exists.

Richard

[7.62bthp]

762:

I understand and sympathize with the fear. It is a shame that we have to be fearful of the ATF. I am in a little different situation as I am a police officer and I hope that the ATF would be hesitant to make an arrest without a clear cut violation. I had a nice broom handle and stock at one time and didn't loose a minutes sleep over it, but it went in a trade long ago. I wish I'd have kept it. It would be a simple matter to get a letter from ATF on the Uzi pistol to carbine conversion. Although it could cause them to close that loop hole which now definitely exists.

Richard

I'm an "ex" myself, and currently an Officer (Secretary) in a national LE group...I still don't cross that line!:) The Feds don't give a rats ass about us locals!

[watchin]

As with any rule, there are exceptions. Current guidelines are that if it started out life from the factory as a pistol then it should stay a pistol (that means no shoulder stock). If it started out as a rifle then it should have a 16" or longer barrel (unless it is legally converted with paperwork and taxes to a Short Barreled Rifle). Putting a shoulder stock on a pistol (again, some pistols were made with shoulder stocks..Broomhandles, Lugers, etc and are OK to have with stocks if they were original to the gun) is not allowable. That's the long and short of it and there is no 'uneasy' feeling of having your butt hanging out.

[rlowe]

Watchin:

Did you read post #13?

[jonathon]

Pistol can go to rifle and back, and it can also be an AOW or SBR.

Rifle can't do anything but become an SBR.

[watchin]

rlowe: Yes, I did read post #13. This is data that supports the 'exception' rule that I mentioned in post #17. I think you are looking for a 'logical' explanation of the Federal Gun Laws. I feel your pain, brother.

jonathon: I agree with what your say, but then I also live in one of the great states that legally allows you to buy, possess and attach a suppressor to any rifle or pistol (it is just illegal if you 'use' it).
So, the long and short of it is, as it has always been, you pay your money and you take your chances (or maybe the other way around). God tells me I can do anything I want to do..it is just hard to get Him in the courtroom to defend me.
-watchin-