I am sending off three 22 barrels for to get threaded. If I send four I will get a discount on all of the work. The only other barrel I can send him is my M1 carbine (probably have to send him the entire barrel and receiver). Anyways, I originally bought it via CMP (before I had my C&R). Is this okay to do? If so anyone done this?
Thanks,
Mav

Why do you want to thread a carbine barrel?  For what purpose??

Why ? It will ruin any resale value of the gun

... Because he'll get a discount on the other three barrels.

(All joking aside, I don't see the point.  It won't serve any real purpose, and will kill the value of the carbine.)

To put a can on it.

If it is a USGI barrel then no.

Just answered why. I don't care about resale value as I would never re-sell it-I don't understand why someone would buy a surplus item that is so historic and then re-sell it. And I know what you are thinking-you could make the same argument about threading end of barrel. Butt the difference is that it is my rifle and I may just like to shoot it suppressed and all I want to know-strike that what I care about is legality.  I'm not painting it fucking pink or putting all kinds of shit on it. This is what pisses me off sometimes about these online forums-I just ask a simple question and instead of getting an answer I get fucking judgements. You know what-forget it.

Thank you! That is all I wanted to know.

calm down dude. No one judged you, they just let you know what the consequences would be if you were to thread it. And that person also posted before you answered.

Not "judging" or trying to be a dick, but the flip-side of your argument is, some folks don't understand why someone would buy a surplus item that is so historic and then modify the hell out of it.

Is there even subsonic .30 Carbine ammo available?  Would the the thing cycle with subs?  

Why would there be any legal question? DCM / CMP has nothing to do with it anymore than any other gun store after the sale. That being said......Please don't do it, there are many people who would love to have an M! Carbine that has not been altered. If it happens to be an IBM I would be interested. My wife has 35 years with IBM and it is the only gun she has ever expressed an interest in.

I might be able to share some info as someone else who isn't afraid to do slight bubba work (every rifle I have has a scope mount of some kind. Some were D&T by someone else that I put back into original shape but kept scoped. And some I had scoped with original/replica mounts. I also have my Chilean 1895, M1 Garand, and k98 threaded.)

Feel free to thread it. Even if it is a USGI Barrel there is no real consequences to threading it. However, the logistics of suppressed .30 carbine is rough. The twist rate on an original USGI carbine barrel is too slow to stabilize heavy grain weight cast bullets. (1/10 I believe.) You can load subsonic for it and it can be fun, but the projectiles have to be custom made. Also a faster twist barrel is advisable. I have a 1 in 7 threaded military contour short barrel sitting in the safe at work, waiting for the paperwork on my SBR M1 to be processed. You can obviously also put supers through a can, but it wont be as quiet. Here is a picture of what I am trying to make, not my pic, but it was the inspiration.

This isn't GD.  I'd chill out.

That being said - do what you want to your own rifle.  It's yours - no one else dictates what you do with your own stuff.  

I wouldn't say that it would ruin the "re-sale value" as much as it would the historical integrity of the firearm.  Mechanically - there is no reason why you could not thread it as far as I know.

Topic Moved

I always thought a SBR M1 Carbine would be cool suppressed. Had a Springfield new barrel to do the SBR so I kept the USGI barrel. Never did start that project and sold the barrel.

You may legally thread it and paint it pink.

Personally I'd never do that to a nice historic or collectable, but it's your gun, do what you want.

Please don't thread an original carbine. These are a heritage that should be passed on to future generations.

I once bought a carbine that was threaded for a flash hider. (The reason I bought it was that it was priced at a considerable discount.) I had a machine shop turn off the threads on a lathe, and press a sleeve on the end of the barrel to restore it to the original diameter. The joint was hidden by the front sight base. When the job was done you couldn't tell it had been messed with.

I don't understand this logic.
It's still bubba'd...
I would rather keep it in it's more functional form but apparently YMMV.
I don't envision that repair job being cheap, either.

I would look for an adapter to put on the barrel for the can