Cuma Evolution

You can't choose your time of peril

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

Availability: Honorably Discharged

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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"
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 (1)
Excellent combat knife
I had the opportunity to evaluate this piece when it was first released. Johnny Tsai's input created one heck of a tool. The finger choil & rocky mountain tread provide comfort in multiple grips. This knife has a great weight and balance & a fantastic weight. It's burly without being ridiculously heavy. I have found it suitable for most camp chores. Some bushcraft folks have criticized the sharpened back, saying it interferes with tasks like batonning. Well, this wasn't designed as a bushcraft blade. Tops makes a ton of excellent bushcraft knives. I believe the CUMA Evolution was created as a purpose built all-around tool that specializes in combat roles. Knowing what I know about Filipino martial arts & defensive tactics, I would feel very confident in this blade's ability to preserve life & limb in a life or death encounter. This knife sports clean lines and a very decent sheath system. I keep a small lockback knife & waterproof matches in the sheath pocket. Overall, this is one of my favorite Tops knives. For a beefy knife that excels in multiple roles, the Cuma Evolution is a very well rounded knife, with abilities beyond its combat specialty role. Review by Aaron (Posted on 3/8/2016)
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