ideas

Duracoat and cerakote seem to work well, never done it myself, but I've seen a few done very well, and a few that looked terrible. I think the trick is proper prep and a good sprayer.

Go with Duracoat! It will last much longer and look 10x better than Krylon. A lot of 'gun customizers' and gun smith's are applying it (including a few on this forum).

Get Magpul Flat Dark Earth (or FDE). It matches almost perfectly.

where do i get that type ?? links please..

This is one of the places to go...there are many more.
http://www.lauerweaponry.com/index.cfm?fuseaction=category.display&category_id=678
It may look darker on the computer, but items I have seen sprayed comes out very close the the Glock OD.

Hit up google and search it and you will find more You can get a whole kit for about 55 bucks (but you will need a small air compressor).

i did lots if info almost to much..