Check the on/off pin length and gap between the back of the trigger and trigger rod when pressurized.
Link will give you factory pin length. If it is shorter than specified for your particular valve, it can increase bounce.
The gap between trigger and trigger rod should be a credit card's thickness. I believe if it's more than that, it can increase bounce.
Check for worn sear or bolt lip.
Did the previous owner put a ULT in it? If so, and adjusted wrong, it can cause bounce.
There may be other factors, but I think these are first and foremost.
Are you trying to get bounce or solve it? I try to remove bounce on my Mags. Just my preference is all.
Last edited by nak81783; 07-18-2013 at 07:21 AM.
Reason: Removed invalid information
Last of the Salzburg Clan