So I now have an old style FX moderator it has a larger than 1/2 x 20 thread pattern on the connecting (gun) end. Does anyone know the thread pattern? Or if there is an adapter to fit to 1/2 x 20?
I believe it's 1x20 in metric. That'd be 20mm across. Others might be able to validate. If you are looking for a moderator, DonnyFL sells an adapter plate to mount their moderators.