Ka-Bar USSF Space Force Corser GFN (3.5" Gray AUS-8A) 5698SF KA-BAR 5698SF USSF Space-Bar, Corser Folding Knife, 3.5" AUS-8A Gray Tanto Blade, Textured Blue GFN-PA66 Handles The 5698SF USSF Corser Folder has a tanto blade shape and very little to impede quick opening and closing. The lockback knife has a blue... $51.95 $35.99 Choose Options Compare