I have a Gwinn Firearms Bushmaster Arm Pistol that is not fully chambering rounds among other things and I would like to replace the recoil spring before I do anything else. Does anyone know if parts are available for this firearm or if a spring from something else might be adapted. I have a small gunsmith shop and this is the first one of these I've ever come across. Sure is an odd bugger. Thanks for any help. greer
