Click to enlarge


(Please click images for larger pictures. (The color photo is courtesy of S.O. Black/white photo courtesy of M.S.)

SORRY! Currently out-of-stock

FREE Priority Mail shipping to USA and Military Addresses


**GENEROUS ADDITIONAL DISCOUNT WHEN YOU PAY WITH A US POSTAL MONEY ORDER OR A CHECK** Please email us at or call us at 800-470-9414 or 801-770-4466 for more information. This option is available only for USA customers and not available on our website.


Extrema Ratio has taken the full-sized MF2 as the basic pattern for a compact version of this popular folder. Extrema Ratio has named this smaller version, the “MF0” folder. Shorter but definitely not shorted on quality or features. The MF0 is ideal for an EDC. A strong, solid, compact folder that rides easily in your pocket. The compact sized MF0 is a good option if you need a shorter blade due to local laws or if you prefer a shorter, easier-to-carry blade.

This model of the RAO has the “Desert” finish. The blade is black with a laser produced GeoCamo pattern. Extrema Ratio guarantees this finish to be as durable as the classic black (Testudo) finish.


The MF0 [MFzero] blade has been shortened compared to the other MF blades. This compact, clean blade shape is similar to the “leaf” shaped blade on the fixed blade Shrapnel OG. The blade is formed to include a lower guard with a lanyard hole. It has ambidextrous thumb stubs. Jimping on the blade allows you to have extra control. This section measures .958 inches (mm 24.33).


The handle on the MF0 has been reduced as much as possible to a minimum length. Even though the handle is somewhat shorter than the other MFs, it has been designed to give you a good grip. Because of this, the MF0 does not have the MF2's “sub hilt”. There is a window breaker on the end extending beyond the bridge clip. Jimping on the blade extends back into the handle. The total jimping area allows variable finger actions for better pressure. (See black/white photo above.) Total jimping area for blade and handle is 1.51 inches (mm 38.35).


This folder has a liner lock. The MF0 offers you a solid, worry free, locking system that is standard on all the MF knives. It also has an additional manual lock for an extra layer of safety.


The MF0 has a reversible side-to-side clip. This clip is a "bridge" clip that wraps around the end so the knife sits deeper in your pocket for a more discreet carry. It gives you a tip up carry. A lanyard can also be attached to the clip.

Length of Knife Opened: mm 180.09 (7.09 inches)

Length of Knife Closed: mm 111.51 (4.39 inches)

Blade Length (Sharpened Area): mm 66.04 (2.60 inches)

Handle Length: mm 106.68 (4.22 inches)

Weight of Knife: g 138.91 (4.90 ounces)

Blade Thickness (Widest Part): mm 4.00 (0.16 inches)

Blade Width (Widest Section): mm 28.19 (1.11 inches)

Closed Knife Thickness (Excluding Clip): mm 15.24 (.60 inches)

Blade Steel: Bohler N690 cobalt stainless steel*

Blade Hardness: Rockwell 58 HRC

Grinding: Flat grind

Serrations on Blade: No

Lock: Liner lock

Safety Lock: Yes

Handle: Anticorodal aluminum**

Belt Clip on Knife: Reversible and positioned to allow a deep pocket carry. Tip up carry. Wraps over end of handle

Window Breaker: Yes


* The blade is made with N690 cobalt stainless steel; a high performance steel with excellent cutting and sharpening characteristics. This steel is also used in the butchering industry and to make surgical instruments.

** The handle is made of anodized Anticorodal, an aluminum alloy that is very strong and corrosion resistant.

133mf0dwADVERTISED PRICE $338.00CLICK TO SEE HOW MUCH YOU SAVE! map price $338.00
It is the responsibility of the buyer, not Xtreme Knives, to determine and follow all local, state, federal and international laws and ordinances regarding the purchase, possession, and use of any item purchased from us.

Copyright 1999 - 2017 Xtreme Knives (tm). All rights reserved worldwide.