Well I just receved my X-Valve and installed it 
I tried it with my old On/Off assembly. and it doesn't work? I am using my old sear as the new one that came with kit didn't have the brass bushing that my old one had and has to much movement?? ( this may be what is making it not work). When I pull the trigger nothing happen but the trigger pull it is very hard. If I take out the big o-ring under the On/Off assembly it will RT like a MOFO but has no single shot?
Any help will be appriciated
I tried it with my old On/Off assembly. and it doesn't work? I am using my old sear as the new one that came with kit didn't have the brass bushing that my old one had and has to much movement?? ( this may be what is making it not work). When I pull the trigger nothing happen but the trigger pull it is very hard. If I take out the big o-ring under the On/Off assembly it will RT like a MOFO but has no single shot? Any help will be appriciated