I believe your model is legal so long as you don't have larger than 10rd magazine. Some of the folding Kel-Tec's are illegal because they could fire from the folded position classifying them as handguns. This is not the case with the 2000. As long as you don't modify it to include prohibited items like flash suppressor, collapsible stock, or bayonet lug you should be okay.
Thanks I was concened about the folding feature of the rifle. I know in NY you can have a gun with a pistol grip that has a second features such as a flash hider, threaded barrel, collapsable stock, etc.... But I was worried if that second featured could be applied to (collapsable gun. Didn't add anything to the gun so I guess its cool.