Columbia River Knife and Tool 5510 K.I.S.S. in the Dark 2.25-Inch Serrated Blade Knife, Gray – $17.80 FS W/Prime.

While not a big drop, this is the lowest price I have ever seen on this. I have 2 and EDC this version (serrated) as a money clip. I had temporarily lost my fine edge version (which is why I bought this version) but it did EDC duty for several years and looks almost as good as new. One thing to note is due to design, this is really a right handed knife only.
Columbia River Knife and Tool 5510 K.I.S.S. in the Dark 2.25-Inch Serrated Blade Knife, Gray
420J2 stainless steel
Tanto serrated blade
Money clip knife
Integral Frame lock