Kizer’s Drop Bear Zero strips the Drop Bear to basics: a screwless aluminum handle, a button driven liner lock and an M390 blade in matte black. It sells for $117 today, $12.95 under the $129.95 list price, at Amazon and direct from Kizer.
Kizer’s own store matches the $117 price, so the discount is the maker’s own cut rather than a marketplace markdown that vanishes at checkout.
Ten percent is a modest cut, and it is worth saying plainly before anything else. The list price holds at $129.95 on both storefronts.
Designer Azo built the Zero by subtraction, taking Kizer’s Drop Bear pattern and removing everything that was not doing work. The hardware left the show side, and the clip moved to the tail. The lock became a single button your thumb already knows how to find. The reason to look twice is the spec sheet, because M390 folders with machined aluminum handles usually start well above this price.
Kizer Drop Bear Zero (Ki3619BDA2)
M390 drop point, button liner lock, screwless dark blue aluminum handle, 3.45 ounces
Price: $129.95 $117 (save $12.95, 10% off)
Where to buy: Buy on Amazon
A bigger button runs the lock

The Zero opens with a thumb stud and locks with Kizer’s Button Liner Lock, a liner lock worked by the enlarged semi-circular button set into the handle’s show side. Your thumb finds it without looking.
There is no liner edge to dig a thumbnail into while the blade is moving.
Kizer says the button’s tactile surface grew by 61.5 percent over a standard button, and the wider target spreads pressure across your thumb pad instead of concentrating it on one small point. Closing runs the same way in reverse, with a press of the button freeing the liner so the blade can fold back into the handle.
The button sits where your thumb lands when the knife is open, inside a shallow oval recess that keeps it from catching on a pocket seam. Kizer moved every other control out of the way, so the button is the first thing your thumb finds.
Deployment is one handed start to finish, stud out and button back, with no grip change in between. It counts on a ladder, in a boat, or anywhere the other hand is already holding the work.
M390, hollow ground, under matte black

The blade is a 3.1 inch drop point in Böhler M390, hardened to 59-60 HRC and ground hollow, so the edge stays thin behind the bevel and slices with less drag than a flat grind. The black coat keeps the blade quiet. Kizer rates the DLC Ultra coat at 2200 to 2500 HV, a hardness range meant to keep the black finish from scuffing through to bare steel in daily use.
M390 is a powder metallurgy stainless steel, and the powder process packs the carbides finer and more evenly than a conventional melt allows. That structure is why the steel holds an edge through long stretches of cardboard and rope. It keeps that edge through food prep too, without giving up corrosion resistance in the bargain. It comes back to sharp faster.
The hollow grind pays you back at the stone, because a thinner edge needs less metal removed to raise a burr. M390 gives that time back slowly, since a steel this wear resistant asks for patience and a fine stone when it finally does dull.
No screws on the show side

The handle is CNC machined aluminum with a screwless show side, so the dark blue slab stays one clean surface from pivot to tail. Your hand lands in a four finger grip by shape alone, and multi-stage jimping along the spine gives your thumb purchase for push cuts.
Overall length runs 7.23 inches open and the whole knife weighs 3.45 ounces, which puts the Zero in the middleweight class of everyday carry rather than the keychain end of the drawer. It is big enough for food prep and camp chores, small enough to forget in a pocket between them. It carries lighter than it looks.
Carry runs through a tail mounted reversible clip, and the lanyard hole hides inside the backspacer instead of punching through the handle’s lines. At 4.13 inches closed with a deep carry clip, the Zero drops into a pocket and stays there without printing its outline. The anodized finish keeps the color in the metal itself, so pocket wear polishes the edges instead of flaking a coating off the slab.
The full sheet, as Kizer lists it:
| Specification | Detail |
|---|---|
| Model | Drop Bear Zero |
| Model number | Ki3619BDA2 |
| Designer | Azo |
| Overall length | 7.23 in / 183.6 mm |
| Blade length | 3.1 in / 78.8 mm |
| Blade material | M390 |
| Blade finish | Matte DLC Ultra |
| Blade grind | Hollow |
| Hardness | 59-60 HRC |
| Handle | Aluminum, Dark Blue |
| Handle length | 4.13 in / 104.8 mm |
| Lock | Kizer Button Liner Lock |
| Weight | 3.45 oz / 97.9 g |
Kizer Drop Bear Zero (Ki3619BDA2)
Price: $129.95 $117 (save $12.95, 10% off)
Where to buy: Buy at Kizer
Buy the Zero if you want M390 and a button lock in a handle with nothing to snag, catch or stare at, and you can live with a 10 percent discount instead of a deep one. Skip it if you need a bigger blade or a lock you can work with gloves on, because 3.1 inches and a recessed button set real limits.
The satin gray version of the same knife undercuts this $117 price at $108 on Amazon, so pick the Dark Blue only if the black blade and blue handle are the ones you want.