Ontario RAT-1 or RAT-2 is my suggestion. Not a flipper (has a thumbstud) but fits all other criteria.
I agreee with the RAT suggestions. Awesome knife for the money.
If he wants more blacktical, if it's discounted, or for a few dollars more, the Kershaw Emerson CQC-8K could get him interested in Emersons and the "wave". The CQC-5K is olive drab and smaller at ~3" but also has a black blade. This is a nice light, mini linerlock spearpoint emerson. I think you can get the 6K and 7K in black as well. 7K, I've seen anyway, maybe not the 6K.
Reason I mention the later kemersons is because I found the 8K surprisingly great. Looks ugly AF, but comfortable, and if you're lazy like me, very easy to touch up on the fly with whatever you have around you.