I also like small built like at Tank blades.
I currently own
a Boker BOB as shown in this thread
a Boker Plus Elegance PSK
Overall length: 6 1/2"
Blade length: 3"
Weight: 6 oz.
Blade thickness: 4,0 mm
Blade material: 12C27
Handle material: G-10
a TOPS Baghdad box cutter

Blade Length: 2 1/4"
O/A Length: 4 7/8"
Cutting Edge: 2 1/4"
Thickness: 1/4"
Blade Color: Black Traction Coating
Steel: 1095 High Carbon Alloy RC-58
Handle Style: Skeletonized
Sheath: Kydex With a Multi Position Spring Steel Clip
Weight: 4.3oz
a TOPS Mini-Eagle (two fingers handle, nasty little claw)

OAL Length: 5 1/2
Blade Length: 3
Thickness: 1/4
Steel: 1095 High carbon Steel RC 56-58
Handle: Black Linen Micarta
Sheath: Kydex
Blade Color: Black Traction Coating
My vote goes on the TOPS Baghdad box cutter. No scales makes it .25 thin and takes very little place.
I have an eye on the TOPS Lil Roughneck, but at 3/8inch thick, I wonder if this thing can cut clean without tearing apart.
As a side note, that RaidOps at 300 for D2 steel? No way I would pay that much for one of these.