These Black Moria Special OPS knives are perfect.

Aircraft tooled aluminum handles, 440 black coated stainless half serrated blades, thumb stud and pocket clip make these knives great for an all purpose folder.  The unique top thumb sling make this knife an very fast and easy opener.  A flick of the wrist and a push on the sling opener sends the blade out fast.  This feature makes this knife very dependable in those quick situations.

Our Large version is 4-1/2 inches closed and a full 8 inches open.

Our smaller version is 4 inches closed and 7 inches open.