I have never heard of anyone getting busted for a parts count violation, and if you search every gun forum online, you wont find one either. The ATF has much better things to do with their time. They dont really care if your trigger, which is exactly the same as the one before it, has 'US' on it or not. MAYBE, maybe you can find someone that messed up a lot of different ways and had the parts count thing tacked on to add time.Don't know, I'm not sure if he even knows that this is required. How many people get busted for this? I'm talking regular people not dealers and importers.
Bottom line, almost zero chance of getting busted, but theres no reason to risk it when you can be compliant for $50. All of mine are compliant. I dont want to be the first guy everyone reads about, getting busted at a gun show.
Yeah, the pistol grip thing can be state by state too. The parts count thing is a federal law.It is illegal in some states and legal in others. You need to check your local laws.