Factory SBR barrel thread pitch

[swissguy]

Molded on stock, left side:
Fabrique Nationale Herstal BELGIUM
Below that:
FN
Columbia, SC

Came in a brown cardboard box. It's a factory SBR. Picatinny top rail.

I took it home from the shop today. I had bought a CMMG barrel thread adapter from M12x1LH to 1/2-28. But, to my surprise, the barrel is not threaded LH. Seems to be M12x1mm RH.. you just can't trust the internet any more

[Buffman]

I'm unaware of them making any changes to the barrel threads.?

[panzermk2]

There is no such thing as a factory SBR PS90 at all ever.


You got suckered into buying something someone screwed with already.

Sorry man, but I think you figured that out already. Hopefully they re installed every correctly.

[swissguy]

Thank you for this information. I will have a word with the shop owner I bought it from.