Choffman has it absolutely right.. it is same as beretta except there is a 2nd pin which retains the internal lock on the newer guns, there is a spring, a security peg (which is the lock) and at least 1 tiny ball bearing probably smaller then a ball point pen..
i did not notice this when i first took mine apart there aparently is actualy a 2nd bearing but i was able to after several hours reset one the one ball bearing i found and it seems to function just fine.. it is a moot point since i have a rubber back strap on mine so i can't use the lock anyway.. it's safe to remove the security peg altogether but you will have a hole in the back strap.
if you attempt this on a newer gun with the lock do it very carefully.. it is a nightmare to reset the bearing on them and incredibly easy to loose.
i did not notice this when i first took mine apart there aparently is actualy a 2nd bearing but i was able to after several hours reset one the one ball bearing i found and it seems to function just fine.. it is a moot point since i have a rubber back strap on mine so i can't use the lock anyway.. it's safe to remove the security peg altogether but you will have a hole in the back strap.
if you attempt this on a newer gun with the lock do it very carefully.. it is a nightmare to reset the bearing on them and incredibly easy to loose.