AI AX muzzle thread type?

[S12A]

gday

just wanting to know the thread type pitch etc on the factory AX 20inch barrels?

cant find it anywhere,

thanks

S12A

 

[HKC123]

M18x1,5 - thread

Standard thread size on the Accuracy International Sniper Rifles

 

[S12A]

Thanks for that, much appreciated!