I saw a few AR-15s at the local Gander Mountain and someone had a S&W M&P 15 at a local range. I've also read the following NYS regulation: >ASSAULT WEAPON MEANS . . . (snip) . . . (d) any of the weapons, or functioning frames or receivers of such weapons, or copies or duplicates of such weapons, in any caliber, known as: . . (snip) . . . (iv) Colt AR-15;< (Itals & underline mine) I haven’t seen this conflict addressed in my searches. NYFirearms.com says it's because of small differences between the Colt and the knock-offs. Or in others words, anyone can buy a Colt AR 15, so long as it's not made by Colt. Huh? I know a lot of NYS laws don't make sense, not just firearms laws, but this is especially perplexing. Can someone here enlighten me?