folding-knife-f4-echo-serbian-red-tekto-knives

folding-knife-f4-echo-american-walnut-tekto-knives

folding-knife-f4-echo-tactical-black-tekto-knives

Introduction Video

F4 Echo

Rated 4.9 out of 5

Based on 26 reviews

$ 199.99

Rated 4.9 out of 5

Based on 26 reviews

$ 199.99

Unleash the F4 Echo, a precision-built manual flipper created in collaboration with Zastava Arms USA. Designed for control and feel, the F4 Echo opens with intent and closes just as deliberately, giving each movement purpose and confidence in hand. Built for real-world carry, it balances strength, reliability, and refined handling, blending premium materials with rifle-inspired design details to create a modern folding knife that feels deliberate, capable, and ready for everyday use.

Color

Add Custom Blade Engraving ($ 9.99)

Estimated delivery: Thursday, 2 November 2026

specifications

Handle Material: Aluminum & G10

Blade Material: Titanium-Coated S35VN

Blade Hardness: 60-62

Blade Style: Fine Edge Reverse Tanto

Locking: Button Lock

measurements

Blade Length: 3.40" (86mm)

Handle Length: 4.30" (109mm)

Open Length: 7.70" (196mm)

Handle Width: 0.5" (13mm)

Weight: 2.64oz (75g)

equipped with

Ambidextrous Pocket Clip
Lanyard Hole
Tekto Pouch

G10 Inlays

Three distinct G10 inlay options reinforce grip and durability while drawing from classic rifle colorways. Inspired by Zastava’s heritage, the inlays add contrast, control, and character without sacrificing strength.

S35VN Blade Steel

The S35VN blade is built to hold its edge and resist corrosion through sustained use. Chosen for reliability and consistency, it’s a steel made for those who carry daily and expect performance to last.

Smooth Button Lock

The button-lock system delivers clean, controlled action with solid lockup and confident disengagement. Every movement is deliberate, allowing the knife to respond only when you’re ready.

PEOPLE ARE ASKING

What is a Button Lock?

A button lock is a push button allowing the blade to lock in place and not move until the button is pressed again. Upon pressing the button, the lock disengages allowing for blade deployment.

Are Button Lock knives safe?

A button lock is usually considered better and stronger than a liner lock. Additionally, it does score extra safety points for never requiring you to put your hand in the blade’s path as it closes.

Why Do You Add Titanium Coating?

Our titanium coating process increases the corrosion resistance of our blades while at the same time providing the blade with a deep matte texture.

Does the blade arrive sharpened?

Yes, all Tekto knives are sharpened before they leave our facilities. However, all blades lose their edge after prolonged use and must be eventually resharpened.

CUSTOMER REVIEWS

Write a Review

average rating 4.9 out of 5

Based on 26 reviews

5 Stars

23 Reviews
4 Stars

3 Reviews
3 Stars

0 Reviews
2 Stars

0 Reviews
1 Star

0 Reviews

100% of reviewers would recommend this product to a friend

Customer photos and videos

Open user-uploaded photo and review in a modal

Open user-uploaded video and review in a modal

26 Reviews

Sort by

Reviewed by Noah H.

Review posted

I recommend this product

Rated 5 out of 5

My favorite folder by TEKTO

I own the Bravo and the Charlie, both are great knives. But this knife is by far my favorite. Its compact and super smooth, smoother than the Charlie in my opinion, maybe due to the lighter weight. The button lock makes this knife fidgety, I keep opening and closing it all day long. The reverse tano is unique as most of the Tekto knives are drop points. I've used the knife for about 4 weeks and Ive cut rope, opened boxes and chopped a few branches, no issues, it did it well. Its still sharp, I haven't had to sharpen it. I received this knife free in return for an honest review.

Was this helpful?

Reviewed by Antonio Y.

Verified Buyer

Review posted

I recommend this product

Rated 5 out of 5

Awesome knife!

Great knife, great color. It has a smooth action and the push button lock is very fidgety. This is like my 5th Tekto. You guys keep knocking it out of the park. Thank you!

Was this helpful?

Reviewed by Steve D.

Verified Buyer

Review posted

I recommend this product

Rated 5 out of 5

Solid

Smaller that I thought it would be but any bigger and it wouldn’t be as good on a carry. Solid construction. Light weight

Was this helpful?

Reviewed by Michael E.

Verified Buyer

Review posted

I recommend this product

Rated 5 out of 5

Best knife ever

Love this knife , my favorite of all my Tekto knives

Actually of all my knives

Super smooth opening and love the release button

Thank you

Was this helpful?

Reviewed by Darcy S.

Verified Buyer

Review posted

I recommend this product

Rated 5 out of 5

In love with these folders

I have over 40 tactical folding blades and I have a couple that are my “go to” knives. Since I purchased my first Tekto knife a few months ago, I have been obsessed with the quality and ease of use. I am from Canada so the exchange and shipping makes the knives quite expensive but they are worth it. My F4 is so easy to carry in jeans or even suit pants. The ease of operation is amazing; I have never had a knife with such a smooth opening process. The look of the knife is so appealing. All in all, I am ready to buy every version of Tekto knives.

Was this helpful?