Well, if you mean a transferrable full auto, your chances of being approved for the NFA tax stamp in New Jersey are pretty much... well, slim to none is being optimistic, so let's just say zero.
When the Clinton ban on semi auto so-called "civilian assault weapons" went into sunset in 2004, New Jersey was one of the states which wrote the ban into its state legislature. However, a rifle manufactured prior to the 1994 ban can still be imported into the state, and a rifle which does not possess two or more of the prohibited features can be owned and purchased in the state of New Jersey. Those features include flash suppressors, folding or telescoping buttstocks, pronounced pistol grip, grenade launching attachments, etc. So, you can own pretty much the same semi auto rifle as everyone else - you just have to do without the "scary looking" features.
yes
Yes
Have never heard of an underwater assault rifle. In the US, you must be 18 to buy a rifle, and 21 to buy a fully automatic rifle.
The SKS is not an assault rifle, nor even a BATFE-defined "civilian assault weapon". And no, a permit is not required.
For a semiautomatic rifle, you must be 18. For a TRUE assault rifle, which is capable of burst or full auto fire, you must be 21. Federal law.
Assault rifle.
The SOAR (Special Operations Assault Rifle).
There are several different assault rifles - both by the true definition of an assault rifle and by the political motivated BATFE definition of a so-called "civilian assault rifle", manufactured by several different outfits. Which assault rifle did you have in mind, specifically?
There is no assault rifle in Halo 2. They replaced it with the battle rifle which in it's own way is pretty good.
The first true assault rifle debuted in 1942.
STG 44 1940 (Nazi) techinically an assault rifle due to the rifled barrellbut it was developed off of the machine pistol 40. the first "true" assault rifle in it's own right is the automatic kalashnikov 47. this is the most known and is tsill used today
If it's an ongoing felony charge, or a felony conviction, no.