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Large Selection of Unique Knives, Hand Forged Axes & Outdoor Gear Since 2012
Large Selection of Knives, Forged Axes & Outdoor Gear

TOPS Cuma Evolution Knife

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Original price $220.00
Original price $220.00 - Original price $220.00
Original price $220.00
Current price $176.00
$176.00 - $176.00
Current price $176.00



Designed by Waysun Johnny Tsai, this tool is great for tactical, self-defense, and outdoor use.

Sijo Waysun Johnny Tsai brings 25 plus years of hands on teaching experience. Well known, respected, and appreciated, this quiet professional brings his students a wealth of world class knowledge and experience. According to the Chicago Sun Times, "Tsai's kung fu has been world renowned for world class instruction since 1964" Johnny notes, "we are a Chinese kung fu CUMA combative street defense center."

In addition to full attention to his responsibilities as a respected martial artist, Johnny interacts, regularly trains, and advises numerous law enforcement officers, military personnel, VIPs, and other notable persons that prefer not to be mentioned. There is also talk about overseeing several action film projects on the small and silver screens. Johnny's input to the design of the CUMA Evolution Knife, was welcomed by TOPS staff. Hard work, testing, and refinement went into this fine knife. We at TOPS Knives are proud of our association with Sijo Waysun Johhny Tsai.

DISCLAIMER: This knife is primarily for use by military, law enforcement, and executive protection specialists. It is incumbent upon the purchaser to be over 18 years of age and to check with local law enforcement personnel regarding legalities of double-edged weapons in his/her area. THIS IS YOUR RESPONSIBILITY.

Knife Type Fixed Blade

Overall Length 10.00"

Blade Length 4.63"

Cutting Edge 4.63"

Secondary Edge 4.00"

Blade Thickness 0.190"

Blade Steel 1095 RC 56-58

Blade Finish Black Traction Coating

Handle Material Black Linen Micarta

Handle Style Rocky Mountain Tread

Knife Weight 10.5 oz

Weight w/ Sheath 14.4 oz

Sheath Included Yes

Sheath Material Black Ballistic Nylon

Sheath Clip Molle Backing


Designer Wayson Johnny Tsai

Customer Reviews

Based on 2 reviews
andrew m.
great blade

great blade the wife ordered me one for our anniversary. It was not doubled edged and the grind goes all the way up into the laseretch. I suspect ill be sending it back for a replacement!

Awesome knife

This is an excellent knife well worth the money with or without a sheath! The knife is weighted, well balanced and designed by one of the greatest combat martial artist of all times. "Two thumbs up!"
The knife fits loose in the sheath it doesn't grip the blade at all. It is secured by a single Velcro strap that doesn't hold very well. Would be nice if ether the sheath gripped the blade to hold in place, or have a snap or better gripping Velcro to secure knife in place.
This is my new favorite knife!

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