I just bought my first GAP pistol yesterday(G37) I took it home and detail stripped it and cleaned it. It was barely used, but I still like to check and clean everything. I noticed that the trigger pull feels different than my other Glocks(G19, etc) Another thing I noticed....When you pull the trigger on my G19 or any other Glock and shake it, the firing pin(or whatever it is) rattles until you reset the trigger. My G37 Does NOT rattle. I detail stripped everything in the slide to make sure it was clean. Everything looks good and clean. Is it normal for it not to rattle when shaken? The G37 does fire and all the parts look new.