Quote Originally Posted by I. J. View Post
http://www.airgunbbs.com/showthread....ng-data-thread
Thanks again. My trigger block has a spring guide just under 14mm in diameter threaded into it (I have been told this isn't standard). I have tried to unscrew it by hand but I think it needs heat and with just having had it refinished I don't want to go down that avenue. I'm wondering if I could get a sleeve to fit over it so it will accept a 16mm ID spring?