you can also remove the firing pin assembly, it's not hard and there's probably a thread on here that explains how. since the back firing pin 'cap' is plastic, the BREAKFREE might not be a good idea, unless you can mask the cap off well. i've only takin the pin out once, and it wasn't that dirty (after about 500 rds. or so). well, the cap may not be plastic, it's probably more of a nylon polymer like the grip, so how does BREAKFREE do against that, not bad?