Hello. Hoping someone may be able to help or advise. I have a a-tec maxim with a 1/2 unf thread but I'm wanting to put it on a different rifle now which is m14x1. I know there's a bush inside which can be changed but after speaking to jacksons rifles they said it would be £112 which sounds very expensive to me. I've only fired 20 round through it so can't send it back. Does any have a spare swap for my 1/2, alternatively buy.i don't think in the first with this problem. Many thanks and all help will be greatly appreciated.