just email the manuf. generally, the popular threading is 1/2 x 28...but it's certainly possible that it is 1/2 x 32, though unlikely. otherwise bring to an experienced machinest and they could probably tell you in a few mins after they perform a quick thread measure.
though it may fit on a pistol, function may not be optimum as the back pressures tend to wreak havoc on semiauto pistol until a device is used to equalize pressure. look up nielsen device.
though it may fit on a pistol, function may not be optimum as the back pressures tend to wreak havoc on semiauto pistol until a device is used to equalize pressure. look up nielsen device.