Buck 337 Paradigm Pro initial

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Apr 9, 2008
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1,319
Just came in the mail
My first flipper knife, and i must say that this is a surprisingly interesting design, the shift lock is easier to use than i anticipated, and the flipper is now my second favourite opening device after the thumb disc.
Very nice 'straight forward' ergonomics, except for the fact that the handle has a bunch of tiny sharp edges all over which cut my girly hand when used rough.
Very nice clip with a smooth professional finish, i only wish the bolsters and the flipper had this kind of attention to detail, but i actually forgot it was on the knife, barely noticeable.
The handle screws are nice, but almost too recessed! They could surely be raised 1-2mm with tiny structurally and visually beneficial results, kinda hurts to run your finger over the holes as it is.
The factory edge is very rough, but functional. Shallow hollow grind, great blade shape and angle, it reminds me of my EKA Swing Blade, i actually expected a flat grind, but now i suspect buck makes nothing but hollow grinds.
The stop pin, which is no longer a round pin for some reason, has me a bit miffed. It is heavily milled out on top and bottom, to make room for the tang and for some reason, the flipper.
The problems with the lock is that the bolster thing slides up, into your fingers while operating (mostly while closing one-handed) which is bothersome when it has sharp edges.
I have absolutely no idea how the lock works, or how strong it is, but only time and or tests will tell.
[EDIT] I just figured it out, the lock actually is the stop pin! It is a kind of button lock, the pin moves to the left when moving the bolster, locking the tang with the full width pin going into a round cutout both closed and open!
One major issue is that if you keep your thumb on the forward left side of the bolster, it will of course open when cutting, which leads to ouchies.
BU337BKS.jpg

tl/dr: Very nice, somewhat gimmicky buck knife.
 
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After using it for a day or two, i must stress that it does have a nice handle form, but the sharp edges inside the gap is rather annoying. I think i will have to screw it apart and round them off.

One thing i did not talk about in the first post was the blue/black G-10 handle, which looks fantastic in the light.

The picture i linked must be of an earlier model, since mine does not have a truncated pivot pin sticking out like that, mine is round and recessed.
Also, the little grooves on the moving bolster is much shorter, they don't go all the way down to the flipper, and they seem to be sharper on mine. From the look of it, i think i would prefer the old ones.
For some reason, the pictured one does not have the little cutout in the back of the corner where the lockpin sits.
Lastly, my 337 came with sharp jimping on the flipper, which i don't really like.
The pictured flipper looks like it's been polished and rounded.
 
Thanks for the write up. It looks nice. how does it flip? do you need wrist action to secure it open?
 
How are the ergos compared to the vantages? I had a similar problem, no matter how much I wanted to like them, they just didn't feel good in hand.
 
How are the ergos compared to the vantages? I had a similar problem, no matter how much I wanted to like them, they just didn't feel good in hand.

I don't have a vantage, but i can say that the 337 has one of the simplest and best handle designs on the market. I like handles that has a simple bent concave vertical form.
 
IMPORTANT UPDATE
The spring does no longer carry the blade to the stop pin, if it ever did, so if one does not flip the blade and lock it very quickly, it can miss being locked and sit a couple of degrees down loose and floppy

Definitely not recommended for personal defense or dangerous work

Great edge though, i wish the rear of the blade was not raised
 
I just got mine today after looking at this review. I bought it despite the warning about the handles being sharp but have yet to have a problem with the knife. It feels really great in my palm and opens and closes without a problem. The handles on mine at least aren't sharp, and are actually really well rounded and smooth, which leads me to believe it may just be the authors knife or I just got lucky. An excellent knife to say the least. Like most ,if not all bucks, its MADE IN THE USA! Honestly I wasn't 100% enthused about the asthetics when I bought it, but after a day of playing around with it and getting used to the blade I can now say I am in love with it. Highly recommend this blade.

Hopefully 'Vicarious Reality', your still around to answer this question about your earlier comment. "IMPORTANT UPDATE
The spring does no longer carry the blade to the stop pin, if it ever did, so if one does not flip the blade and lock it very quickly, it can miss being locked and sit a couple of degrees down loose and floppy

Definitely not recommended for personal defense or dangerous work

Great edge though, i wish the rear of the blade was not raised"

My question is how long after you bought it does this problem occur? I'm trying to figure out how this problem occurs in the knife but cant seem to make mine do what your talking about, except when I manually tighten the pivot screw to tight. Just wondering in case it happens to mine.
 
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