





TOPS Cuma Evolution Knife
CUMA EVOLUTION
YOU CAN'T CHOOSE YOUR TIME OF PERIL
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
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Contact Us
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FAQs
Please read our FAQs below for Help. Call 804-556-1006 (or) use Contact Form for further Assistance.
What are your shipping policies and how fast will my order arrive?
North River Outdoors offers free shipping for purchases of $99 and over within the United States (some oversized items may incur charges). We strive to ship in-stock orders within 24-48 hours, often the same day if placed before 5 PM Eastern Time. Standard free shipping typically arrives via UPS or USPS within 3-6 business days. We currently ship to the USA at this time. You can track your order status by logging into "My Account" on our website.
What is your return and exchange policy?
We offer a 60-day return policy for unopened and unused items, for a 100% refund. Items must be returned in the same (or similar) condition in which they were received. Opened, used, or damaged products, or those not following our return policy, may be subject to a 15% restocking fee. We reserve the right to refuse returns in non-sellable condition. Customers are responsible for return shipping costs.
For Returns? Log into view your Order History and select "Return" to start the process. You can also contact our Store via Email or use our Contact Form to initiate a return.
Do you offer any services like knife sharpening or gear repair?
Yes! We offer a range of services at our Virginia store, including knife sharpening, axe sharpening and rehandling, knife/axe cleaning and conditioning, and waxed canvas bag/pack waxing and conditioning. We also provide laser engraving. Drop-off for services is available Monday-Saturday, with a typical turnaround of 1-2 business days.
How can I ensure I'm buying genuine products and not falling for scam websites?
We understand your concern. To ensure you're buying quality, genuine gear from North River Outdoors, always check the URL to confirm it'swww.northriveroutdoors.com. Our website is secure, professional, and features real-time inventory and product reviews. Be wary of "half-off" or "flash deals" on other sites using our logo – these are often scams. We are a reputable USA Outdoor & Knife Store operating since 2012.
Where is your physical store located and what are your hours?
Our physical store, North River Outdoors, is located at 2941 River Road W, Goochland, VA 23063 USA. Our store hours are always kept up-to-date on our website. You can find our contact information, including phone and email, on our "Contact Us" or "Our Store" pages.
Do you offer Classes or Events?
Yes, our Virginia store hosts a variety of hands-on training Classes and Events throughout the year. We invite you to check our website's "Classes & Events" section or our blog for an updated calendar and information on upcoming workshops, like knife forging, carving classes and our popular Axe Throwing Events.