Hi,
I couldn't find anyone with a similar issue but I apologize if this has been addressed in prior posts:
My SL9 build (with metal SS) frequently freezes following a fired round: by "freezes" I mean the bolt remains open and the trigger and SS are "stuck" in place. The only remedy I have found is to force the front pin open (which takes some doing) at which point the bolt snaps shut and the rifle will fire again (once the pin is put back into proper position). This seems to happen regardless of whether the SS is in the single shot position or the SS position. Clearly something is binding together preventing the bolt from closing but I'm not sure how to trouble-shoot.
Also, and quite possibly related, I finally ground my buffer mass down enough for the SS to kind of work- the problem I'm having is there is not a positive "stop" for the SS in the middle position and the gun's recoil easily jiggles the SS to the right or left which obviously stops SS firing. (If anyone is interested I ground it to about 13.6mm which seemed to be the right dimension for the lever of the SS to stop grabbing the buffer mass). I generally can fire 2-4 rounds before the SS moves into either single shot mode or true safety mode.
Thanks in advance for Tim or anyone else's feedback.
AW