Vladimir, no it is not NY compliant, it has a threaded barrel.

Vladimir, no Sir. The KelTec RDB C comes with a threaded barrel. Details here : calguns.net/calgunforum/showthread.php?t=1498409

I could be mistaken and it may not be a flash suppressor or threaded so I suggest asking the local FFL to see if it is legal or not as he will be the one putting his license on the line to transfer it to you

If you look at closer pictures of it, I don't think that's a flash suppressor l, if it is aflash suppressor or even if it has threaded barrel that would make it prohibited.

Yes that should be good to go in NY.

sorry the Flash suppressor makes it illegal The following are prohibited:
✘Semi-automatic rifles that can accept a detachable magazine and have one or more of
the following features:
1. Folding / telescoping stock
2. Pistol grip
3. Thumbhole Stock
4. Fore-grip
5. Bayonet lug
6. Flash suppressor
7. Muzzle brake
8. Muzzle compensator
9. Threaded barrel
10. Grenade launcher
11. Over 10 round capacity budsgunshop.com/feeds/state_reg/new_york_restrictions.pdf