slam fire kit timing
you need to move the two stops on the cocking rod as the bar acts as a safety catch.
1.loosen off the rear stop,and move back.
2.cock the gun and look down the feed tube so you can see the bolt,then as you push the pump forwards hold the trigger down(you dont need gas)and watch where the bolt is when the gun fires.i find that this wants to be just before the bolt is fully forwards.you adjust this release point by moving the front stop.
forwards =earlier
backwards=later
3.then when you are happy move up ths back stop to a point where it keeps the bar tidy and close ,but take care that the bar moves freely and dont catch.
i hope this helps
good luck