Derya TM-22 muzzle thread pitch?

[ted_dent]

Despite the horrendous price of the mags I am impressed enough by the Derya TM-22 that I am considering buying one. However, I saw a post (can't remember where) that said the model with the short handguard has a muzzle thread pitch of 1/2x28 but the model with the full length handguard (which I prefer) has a different thread pitch (something European so I assume metric). However the post didn't mention what the pitch is.

Can anyone confirm if this is true and if so, what is the thread pitch on the full length handguard model?

Thanks for any informed input.

 

[#1bcshooter]

I bought one several months ago . Blue with mid length hand guard .
The barrel is 1/2x28 but very poorly threaded . I had to purchase a 1/2x28 die to fix the over sized factory threading .
Most were threaded correctly but others have had the same issue

 

[ted_dent]

I bought one several months ago . Blue with mid length hand guard .
The barrel is 1/2x28 but very poorly threaded . I had to purchase a 1/2x28 die to fix the over sized factory threading .
Most were threaded correctly but others have had the same issue

Yes, I've read that about the threads. Still need to find out if the full length handguard model has a different muzzle thread pitch.

 

[ted_dent]

OK, solved. Thread pitch is 1/2x28 so the same as the AR-15. Whoever said it was a different thread pitch was either wrong or the factory changed it to 1/2x28. in any event I'm happy as I have several AR muzzle brakes & comps & wanted to use one of them instead of having to buy a new one.

Update: According to this some early production models did have a different thread pitch (15.4mm?) but they have now standardized to 1/2x28.
https://www.youtube.com/watch?v=Rb5q_XXLNxI