Thread pitch on AX308 and AX338?

[dmtsc]

What is the thread pitch on the Accuracy International AX 308 and AX 338, don't know which one I'm going to get but planning to suppress it and need to know?

Thanks

 

[PatrickChewing]

18x1.5 I believe

 

[heavypanzer]

According to Roedale's webshop, the AI spec is metric M18X1.5., while almost all the other major European manufactuers are using M18X1.

AI truly want more thread, a lot more.