Quoted:
IMHO just because 922 only applies to the "construction" of a firearm and the ATF has ruled that it's not a crime to POSSESS one, it would still be a non compliant firearm and would open up a can of worms if somebody decided to take it because it's non compliant. You may not be arrested but you may be out of a firearm. It's very easy to make sure a rifle has all of it's parts to meet 922 so why not and eliminate any chance of the issue becoming a problem?
In life, in general, you asses the risk of any particular "problem" occuring, in order to ascertain to what degree you should attempt to mitigate the risk of that "problem".
In this case:
1. 922(r) only pertains to "assembly" and "importation";
2. ATF has expressly said that posession of a non-compliant rifle is not a crime; and
3. To the best of my knowledge, no one has ever been arrested or even lost a rifle
solely due to a 922(r) problem.
Given the facts and the risk profile, it is not worth even 3 seconds of my time to address an "issue", that isn't actually an "issue".
You can't run around life trying to protect yourself from every little issue that could forseeably, some way or some how, cause some sort of problem for you at some undefined point in the future. You have to look at the actual risk of a problem, and evoke logic and reason to determine what - if anything - needs to be done. Given 1-3 above, I find no logical reason to worry about my MAK-90, which I suspect might not be compliant.
I sleep just fine at night, too.