Originally Posted by
Spider-TW
Is it on a standard rail and sear?
Also, make sure you have the credit card gap behind the trigger.
in addition to what spider and drop said (both good tips)
i'd check the tightness of the body and the valve to the rail. sometimes they can come out of alignment, and the extra friction causes the bolt to have a tough time resetting. you almost always can tell this is the issue when you are having sticking issues, and a firm knock to the back of the valve resets the bolt.
"because every vengeful cop with a lesbian daughter, is having a bad day, and looking for someone to blame"