Mantis BK-2b Bottleneck Balisong-Style Folding Knife 1.99" Black Tanto Single Edge Blade, Bottle Opener


Retail Price: $40.00 | You Save: $7.05 (18%)
Part #: MNTBK2B | Mantis Knives
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MNTBK2B: BK-2b Bottleneck
Mantis Knives

The introduction of the "Bottleneck Family" was a milestone for the Mantis brand. This series of knives was our first collaboration with Hawk Designs of Idaho City, ID.

Gavin and Grant Hawk have long been friends of the Mantis organization, so it was only natural that we eventually collaborated to bring knife enthusiasts one of the most unique gadgets that the knife-marketplace has ever seen.

The Bottleneck design boasts a bottle opener, butterfly knife which attaches effortlessly to any keyring with it's integral handle/latch configuration.
  • Overall Length: 3.75"
  • Blade Length: 1.99"
  • Cutting Edge: 1.51"
  • Blade Material: 400 Series Stainless
  • Blade Style: Modified Tanto Edge
  • Handle Material: 400 Series Stainless
  • Lock Style: Patented Latch-Lock with integrated handle springs
  • Carry System: Pocket Clip
  • Weight: 3.1 oz.
  • Special Features: Bottle opener can be accessed and used while knife is still attached to keychain,to activate knife... a simple flip of the latch exposes the blade.

UPC Code: 014797805069

Pocket Clip
Pocket Clip
Includes a pocket clip for easy accessibility and a more secure carry.
Steel Handles
Steel Handles
Stainless Steel knife handles provide strength and durability and look and feel great.
3.429 (7 reviews)
3.4 out of 5 stars
5 star
4 star
3 star
2 star
1 star
4 out of 5
New Mexico
Jan 01, 2018
Pros: Lock Type, Handle Material, Blade Sharpness, Blade Material, Ease of Opening, Handle Feel, Weight, Lock Ease of Use, Overall Quality
Cons: Pocket Clip, None
Good. Tight bearings though.
Good. Tight bearings though.
1 out of 5
Geoff S.
El Paso, Texas
Sep 15, 2012
Pros: None
Cons: Blade Material, Overall Quality, Ease of Opening, Lock Ease of Use, Blade Sharpness, Pocket Clip, Lock Type
received defective
This cute little knife started to fall apart as soon as I removed it from the box.
3 out of 5
Mar 24, 2012
Pros: Blade Material, Pocket Clip, None
Cons: Lock Ease of Use, Overall Quality, Handle Feel
Good knife, but has problems
This knife get used for light duty at work and for everyday uses like opening envelopes or boxes. I really just wanted something different while still being useful and this does a pretty good job. I really like the way it looks and it's small so I am able to carry it in my pocket easily. When I got my knife after only using it for a few days I noticed one of the handles was extremely loose, the next day I flipped my knife out of my pocket and the screw holding it in fell off. I looked around online and found out that this is a common problem with this knife, at this point I had noticed that almost all of the screws were VERY loose. So instead of dealing with returning it, I just got out some threadlocker and fixed the problem myself. Since then it's been a very good knife.
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