Need help finding key-mod hand guard for my M4

[Firehoser]

I am looking for a key-mod hand guard (carbine length) for my Chinese M4 that won't break the bank. I want to add a forward red dot sight on a 45 for close up CQB and to be able to put a bi pod on for sighting in. I want to keep the iron sights for back up so a 2 pc unit that can replace the existing plastic preferred. Any suggestions would be appreciated.

 

[Firehoser]

Found one! VISM Key mod. If anyone has others they know of let me know.

 

[mebiuspower]

Try UTG as well. Not sure if NcStar is made to proper keymod spec.

B5 System also makes one in polymer if you can find it here.

http://www.2vetsarms.com/product-p/b5-kmhg.htm