Quoted:
I was wondering if someone could tell me what the differences are on a Armalite M15 lower (or any other semi auto lower) VS a M16 lower? I know any class 3 parts or complete rifles are not legal to own in NY nor is it legal to modify a semi lower into a full auto lower. Im not going to break any laws Im just trying to learn. So before anyone tells me the difference is 10 years in prison and a $250,000 fine there's no need I already know that part of things. I don't know about other states but in NY you cant seem to buy a Colt AR stripped lower. Anyone know why?
Are you talking one where the lower is engraved for "Auto", or one with the extra hole? Extra hole is a no-no.
As to the Colt AR receiver, if it's Pre-Ban, and says "Colt AR-15" on it, you're fine. If it's Post-Ban, it can still be a Colt lower, it just has to say something other than AR-15 on it (Match Target, Sporter, HBAR, etc).