Im with 223Shooter on this one, go to Amazon.com and there are several choices/styles available in the CRKT M-16 series and if those don't suit you try the M-21 series, you can pay anywhere from 17$-40$ for some of the many MANY different configurations they have including the special forces models which have a double quillion.
I can say from experience that these are fine quality knives, I own the M-16 SF in desert, the M-21 04, M-21 02, and the CRKT Ignitor assisted opener. The first three are quillion flipper knives were you basically push on a rear stud and it forces the blade to swing into locked position, the first two have four position pocket clips for left/right hand tip up/down carry, the third is right hand tip up/down, and the last is tip down right hand only.
All of the steel is AUS8 equivalent with the exception of the SF which is AUS4. All feature very grippy Zytel scale handles, and feature Autolawks which almost makes your folder as solid as a fixed blade,and if you don't like the autolawks you can easily remove it without affecting the knives function.
Don't let these other guys talk you into an inferior knife, for the money most CRKT folders cannot be beat. IMHO when compared side by side with sog, gerber, buck, kershaw, spyderco, cold steel, benchmade, and even Al Mar, CRKT folders cannot be beat in a dollar for dollar value, or with the exception of benchmade and Al Mar which are easily 4x the cost plus some cannot be beat in quality. The best ROI (return on investment) in a folder, out of all my knife collection has been CRKT. And I own a lot of ****, my only regret is that I didn't discover CRKT knives sooner, as I followed the other high dollar knife sheeps and just had to pay more than 100$ for a folder, anything less was trash. Well all that resulted was a small knife collection that really wasn't any better than had I bought a small CRKT collection, the difference would have been that I would have had more money left over and still have excellent quality knives.
The above statements are my opinion only, and I don't mean to offend anyone that chose to waste money, as I have, on super expensive knives that are of no better function or quality than CRKT.
Ultimately the choice is yours, good luck on you search.