Could I put a handguard like shown here on my OA98.
How about a brake.
I was told has long as I do not put a verticle grip on the front I am OK
According to the NYS AWB, a semi auto pistol is considered an "Assault Weapon" if it has 2 of these "evil features":
-Magazine outside the grip
-A shroud around the barrel that allows you to "hold the barrel without being burned"
-A manufactured weight over 50oz
-Is a copy of an automatic weapon.
Since you already have the mag outside the grip you can't add another feature. The handguard would be a "shroud" by the definition in the law. I believe a brake would be fine as long as it was permanently attached or didn't use threads to attach.
See: NY Gun Laws
I'm not a lawyer, didn't even stay at a Holiday Inn recently.
I read that and figure it only makes it into an Assault weapon but I do not see where it says NOT LEGAL. I figure all it does is make it into an Assault Pistol . Since I would not put a verticle grip on it I would not have a AOW.
That's down in section 265.02.(7):
A person is guilty of criminal posession of a weapon in the 3rd degree when:
(7) Such person posesses an assault weapon.
Of course if it's a pre-ban (before 9/14/94), you're OK. I assumed that it's not a preban since you didn't state it, but if that's the case, sorry for the misdirection.