I'm a newb here as well and waiting to get my PS90 within the next week here! Forgive me if I didn't read your post right but what you're asking for doesn't exist. I've been doing a good amount of research here in the forums and the barrel needs a shroud in order to function properly. Well in the case of a full length barrel it's a shroud, in an SBR case it's more like a retention collar. If you install a barrel without a shroud it will be free to not only float but to slide all the way to the bolt face when the bolt is locked back, which will also cause issues with the NFA because of the overall length of the firearm. Any which way you slice it, there will need to be a device that needs to be threaded on from the muzzle end of the barrel and extending down to the receiver. Don't worry though the barrel will still float in the receiver as it should.

There was a shroud from a company called Huntertown arms, but I don't even know if they make it anymore. When it was introduced it caused a major discussion on the overall length of the firearm violating NFA laws if not permanently installed using a pin. It did allow the use of a customer's choice of muzzle devices threaded for 1/2x28 threads.

Guys please correct me if I'm wrong here.

 

Your points are correct: What I want does not exist, and some type of shroud will be needed. The Huntertown arms shroud has 1/2x28 threads but does not allow the barrel to free float, hence my meaning for no shrouds please.

What I want is two threaded portions, one at the retention area (like SBR or P90), and then 6" more of barrel with 1/2x28 threads for suppressor. I want a longer SBR barrel.

 

You're looking for a custom fabrication job here. I'd be very interested for personal education if there is such a thing.

 

16" barrel for suppressor, no shrouds please

You talking bout this ps90 threaded 16"bbl? Probably as close to what you want as your going to get! It's threaded 1/2x28mm

45Acp Turning human garbage into useful fertilizer since 1911 !

 

Isn't that a Huntertown Arms shroud?

 

No it's from a company in Az made them for just that purpose so you could run suppressors on a ps90 without cutting your factory bbl


It's a 16" threaded bbl to exact ps90 specs including the shroud


45Acp Turning human garbage into useful fertilizer since 1911 !

 

Hi desert dog offers one.

 

Poor quality control and customer service.

 

It still has a shroud though.

 

No matter what you did you'd have a shroud, or something like it. The barrel is 12mm in diameter or about .472 so it's too small to thread 1/2-28 directly. Also you MUST have something on the front to bear against the delayed unlocking spring and to physically keep the barrel in the gun.

 

Yeah, I understand this but the OP specifically said he didn't want a shroud on his first post.

That's why I said he'd need to look for a very special fabrication due to the design of the receiver. In order to make a barrel that didn't use a shroud and have 1/2x28 threads according to the OP's request, you'd theoretically need to modify the receiver by drilling out and open up the channel the barrel goes through to take on a larger diameter barrel that's large enough to accept 1/2x28 threads. On top of that you'd need threads 10 inches from the chamber end and a special fabricated retaining collar/device to secure the barrel in the receiver within tolerances.

This is all my theory of course. I am a newbie after all lol

 

Exactly Hi desert dog is where I got it back when the turn around was a week and it's in spec no issues!


45Acp Turning human garbage into useful fertilizer since 1911 !

 

P/s they know what you need don't worry about it. If it's a problem have Tros do one for you, but you will be waiting a bit. They stay busy but quality control is top shelf!


45Acp Turning human garbage into useful fertilizer since 1911 !

 

Yeah not possible without a shroud, or threading the barrel at the SBR length, and using a small adapter to act as the retainer. At that point, you might as well do the threaded shroud, if someone would make it right.

 

One comment, a 16" barrel without an attached extension will not be legal. One of the purposes of the factory shroud is to bring the overall length over 26".

 

This is an excellent point!