Jump to NavigationJump to Content
If you are vision-impaired or have some other disability under the Americans with Disabilities Act or a similar law, and you wish to discuss potential accommodations related to shopping on or using the benefits of the 511tactical.com website, please contact customer service at 1-866-451-1726 or customerservice@511tactical.com between 6:30 am and 5:00 pm Pacific Time, Monday through Friday.
Due to high order volumes your order may experience shipping delays.
ZoomClick to Zoom
Shop With Confidence:
Shipping Info / Guaranteed Returns

Style# 51072

Double Duty Karambit Blade

Average rating of 90%

Purpose Built

Featuring dual locking AUS 8 steel blades, the Double Duty Karambit Knife combines superior utility and personal defense capability in an ergonomic, high performance package.

Features and Benefits

  • Twin blade Karambit knife
  • Oversized lanyard hole
  • Ambidextrous carry clip


  • Main and hilt blades are 3mm/1.8mm AUS 8 steel
  • FRN scale grip
  • Black oxide coating
  • 9.7” overall length with both blades deployed
  • Independent liner locks on both blades
  • Includes a Torx wrench for modifications
  • Imported
Product Reviews

Ratings and Reviews

 4.5 average rating

(based on 4 reviews)

90 %

Very sharp, different knife

 Rated 4.0 stars

From Damon

from Houston

Very nice, sharp, knife. I use the small blade more than the larger one. My only complaint is the knife is very thick to be carried in your pocket, standing is fine but when you sit down you really know its there!!

grip is great and shavin sharp blade

 Rated 5.0 stars

From scsa694

from Des Moines, IA

solid construction both blades are very sharp
karambit blade is just the right size for a hidden blade At first it felt somewhat heavy and thick (it has two blades )
the grip is comfortable after some handling no more concerns
The knife is carried daily, front pocket clip or in the vehicle

Best of it's type- no competition.

 Rated 5.0 stars

From FMArts

from Washington

Everything I expect from a 5.11 product. Razor sharp out of the box, solid construction, and then of course the 'hidden' karambit blade. I find other large 'talon' karambits impractical for daily carry ... and the point of the karambit is to be a tiny hidden blade which an enemy cannot see. I choose to carry this knife for tactical and everyday use. FMA and Silat practitioners will love this knife ... I say there is no competition because I have scoured the internet and have found nothing of comparable quality and function ... yet.

Neat concept, not quite

 Rated 4.0 stars

From Bennanias

from Indianapolis, IN

A handy neat little knife.

The best feature is the second smaller blade, which is extremely convenient for smaller tasks when using a full blade is unnecessary. The main blade itself is very sturdy, came very sharp, is in itself well designed.

Opening the main full blade is a tad awkward, the loop is a bit too large to open easily, and the grip has an odd transition while opening (note the large gap where the pointer finger would be).

Also, the knife came extremely over torqued. All screws in the handle had to be loosened to remove most the resistance.

Neat idea, but not worth it in hindsight...

4 Item(s)

Write Your Own Review

Only registered users can write reviews. Please, log in or register