DeSotoSky
Gold Member
- Joined
- Mar 21, 2011
- Messages
- 6,527
These are two little talked about Phrobis knives. The CUK (Combat Utility Knife) and the MFK (Modulear All-Purpose Field Knife). For future reference I would like to create thread specifically for those two knives. Let's show some pictures and pull together what we do know about them. I think Rich Neyman (?sp) is doing a book on the M9, hopefully these two knives will be covered there. Some of the information out there is a little confusing as I found a post by Hubbard saying he did not think Buck made them and one by Houser saying they did. There was a recent Phrobis photo thread started by Makael where he does show a picture of both a CUK and MFK.
https://www.bladeforums.com/threads/lets-see-your-phrobis-knives-184s-188s-and-others.1523749/.
I'll start, I have a MFK. To me it looks like a short M9. It does not have a bayonet attachment on the handle. I believe the MFK to be the commercial retail version of the CUK. I do not know if any were military issued like the CUK. I found reference that about 4,000 blades were made by Buck about 1991. Mine is marked "Pat Pend/USA", etched not stamped. there is also the dolphin etched on the blade. My plastic sheath is without any markings. I wonder if these were about the last blades Buck did for Phrobis before they went separate ways. At separation, Buck bought out Phrobis's inventory and sold it off. My box shows that the Phrobis address was covered over with stickers. Later MFK's were made by Marto in Spain. Other pictures I have seen of the MFK show that it came with 3 different guards the user could interchange to suit. The knife breaks down easily into 4 parts. The handle, guard, and rod/nut on mine are lightweight plastic and feel kinda "cheap". Not sure how durable they are.

https://www.bladeforums.com/threads/lets-see-your-phrobis-knives-184s-188s-and-others.1523749/.
I'll start, I have a MFK. To me it looks like a short M9. It does not have a bayonet attachment on the handle. I believe the MFK to be the commercial retail version of the CUK. I do not know if any were military issued like the CUK. I found reference that about 4,000 blades were made by Buck about 1991. Mine is marked "Pat Pend/USA", etched not stamped. there is also the dolphin etched on the blade. My plastic sheath is without any markings. I wonder if these were about the last blades Buck did for Phrobis before they went separate ways. At separation, Buck bought out Phrobis's inventory and sold it off. My box shows that the Phrobis address was covered over with stickers. Later MFK's were made by Marto in Spain. Other pictures I have seen of the MFK show that it came with 3 different guards the user could interchange to suit. The knife breaks down easily into 4 parts. The handle, guard, and rod/nut on mine are lightweight plastic and feel kinda "cheap". Not sure how durable they are.








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