The CZ czeckmates come with a slide lock pin minus the slide lock lever...it is basically the same as just cutting off the lever. When using them it eliminates the ability to lock back on empty and you have rack the slide back if you happen to run dry and require a mag change (which any comp shooter should strive not to have happen). Also, pulling the slide back insted of using the slide lock is an optimal way of dropping the slide anyway...should you need to. In short, it is my opinion that, if this has happened many many times in matches cut the pin off from the lever run the gun that way....or find a compatible pin (probably a czechmate pin would work...but might be a little long).