Speaking from experience, if you discharge your duty weapon for any purpose other than range time, and incur a "use of force", your weapon will be seized as evidence and a "functions check" will be conducted to include weighing the trigger pull.
Can your personal carry gun be seized as evidence pending the outcome of a trial if you have to use it? Yes.
Can the courts and/or attorneys request the weapon be inspected for damage, malfunction and/or modification, any of which could be used as evidence of misconduct with a weapon? What do you think? Only in the most extreme case would I be concerned "criminally" as long as the shoot is legit. By legit I mean in the spirit of the use of force, was it reasonable and immediately necessary?
However, in the almost sure to follow civil case, can you think of an attorney that wouldn't at least try to use that to take everything you have and anything you may ever have after? Regardless of the reasons? I'm all about being judged by 12 prior to being carried by 6, but the lean of our society is one of social entitlement and almost everybody wants the free lunch. Don't be the free lunch.
Modifying anything that you will expose the rest of society to in your daily routine DOES have the potential to come back and bite you in the arse.
Example: I take the inline six out of my old Cheby and drop a stroked 383 with a tunnel ram dual quads, turbo 400 and shift kit, NOS bottle and Hoosier slick 50's on the rear. What have I done to this car from it's original, factory design which was intended as grandma's grocery getter?
Well, I've made a super bad@ss go-getter that's a hell of a lot of fun. And "should" be run primarily at the track, where's it's NEW intended purpose is to haul the mail in short, furious bursts of speed and adrenaline.
Well, one day after an afternoon at the track you're driving this little gem home. Not doing anything wrong. You're street legal. Not speeding or driving recklessly in any way when WHAM! Out of nowhere at the intersection some idiot makes a right on a red and you eat the south side of a north bound pick up truck.
Are you criminally liable? No. Well, most likely not, but stranger things have happened.
Will the attorney for the idiot pull you and your insurance company for all they can because you were driving a highly modified automobile that you "may" have only had partial control of and "may" have been exceding the speed limit because that's what it's made for? Regardless of the outcome of the criminal traffic investigation because setting precedence with "your" modifications hasn't been done before? Because the investigating agency doesn't have a professional trained in the effects of your uber-modified power train and specialized tires effect on stopping distances and maneuverability issues?
Exactly. Do as you may, but Scooter's reasoning is sound, good advice. If you don't think cases have been awarded to BS complainants before based on BS reasons of modifying something from it's original, intended design, then you have not been paying attention to the peoples court....