CJRB Feldspar Small Knife (J1912S-NTG) Review

CJRB Feldspar Small Knife Review

Here’s the CJRB Feldspar, a folding knife with D2 steel. This is the small version and rocking some great natural green G10 scales! Read on!


Official Specs

Here’s a link to the CJRB Feldspar small knife product page.

Versions

Of the CJRB Feldspar small knife specifically, there are four versions. They differ in body color: black, gray, natural green (seen here), and brown.

Also available is the larger version (model number J1912), which you can read more about in my post on the CJRB Feldspar G10.

Price

Amazon.com has the CJRB Feldspar small knife for around $30. The exact price will depend on which color you pick. Also note that there appears to be a coupon for 10 or 20% (again, depending on the item). Finally, note that within this listing are both large and small variants of the Feldspar, so be sure to select the one you want!


Short Review

love this “natural green” G10. I’m inclined to call it “jade,” and it’s very fetching. The size of the CJRB Feldspar small knife is also fantastic. To me, the bigger (or “Large”) Feldspar was too big. But the small is refined in more ways – the scales are contoured (“CNC pattern texture” they call it). The action is great, the blade shape is great, and it’s just all great. The price is even great.

Long Review

Package and Manual

CJRB Feldspar small knife box

CJRB Feldspar small knife box

There is no manual.

What’s Included

CJRB Feldspar small knife

  • CJRB Feldspar G10 knife

Look

CJRB Feldspar small knife opened

Drink in this “natural green”! I love it. If you’re inclined to love it, I can say that in hand, you’ll really love it. The grip (despite not being textured) is great and the look is very refined.

CJRB Feldspar small knife opened showing clipless side

If you need a complaint, here’s mine: check out the yellow bit surrounding the pivot screw. That actually appears to be brass. Now I love brass, and normally I might love brass in that spot. But it doesn’t match just all that well to the green scales.

CJRB Feldspar small knife closed, feature photo

pocket clip detail

opened and resting, blade doesn't touch

Open / Close / Lock

The only way for opening the CJRB Feldspar small knife is this thumbstud. As with some (but not all) other recent CJRB knives, there’s a thumbstud on both sides of the blade. The thumbstud has “stacked grooves” such that “opening direction” pressure gives good grip for the thumb. 

showing brass ring around pivot

Here you can see the thumbstud on both sides of the blade. It’s not removable, so you won’t really be able to remove one side if you know you favor “right” or “left” side opening.

showing dual thumbstuds

Once opened, the CJRB Feldspar small knife locks by way of this liner lock. It seems secure, and I haven’t had a single issue with it. There’s approximately enough purchase on the liner lock to unlock the blade. This point is beveled though, and it’s pressure (not grip) that will unlock the blade.

showing liner lock

CJRB Feldspar small knife showing closed view

Build and Feel

I said this above but I’ll say it here too – these G10 scales feel great. One more point about the small versus the large – the small is much more refined than the large. The large is largely flat and sharp, while the small has rounded edges and overall just feels so much nicer. 

CJRB Feldspar small knife partially opened

Sometimes I love the brass ring around the pivot and sometimes it looks off. In general, it’s not offputting, so I’ll circle back to it being great. 

CJRB Feldspar small knife partially opened

When opened, the full flat grind makes this drop-point blade great for use.

CJRB Feldspar small knife opened

CJRB Feldspar small knife opened, clip side

The pivot is adjust able – both sides use Torx.

CJRB Feldspar small knife pivot screw detail

The blade on my CJRB Feldspar small knife is perfectly centered. Also, there’s no play or wobble – it’s a well-built knife.

CJRB Feldspar small knife blade centering

CJRB Feldspar small knife thumbstud

The blade spine is beveled, so this won’t be a knife ideal for striking a flint.

CJRB Feldspar small knife dual thumbstuds

Here you can see the metal backspacers.

CJRB Feldspar small knife metal backspacer

CJRB Feldspar small knife in hand

Size

Blade Length 3” (76mm)
Blade Thickness 0.106” (2.7mm)
Overall Length 6.97” (177mm)
Closed Length 3.98” (101mm)

CJRB Feldspar small knife on two dollar bill

CJRB Feldspar small knife on two dollar bill

CJRB Feldspar small knife beside standard flashlights

Here’s the Feldspar alongside some of my favorite flashlights (above) and one of my favorite knives, below. That’s the Civivi Elementum, which I’ve also made a post about.

CJRB Feldspar small knife beside civivi elementum

CJRB Feldspar small knife in hand

CJRB Feldspar small knife in hand

Steel / Cut / Oats

Steel on the CJRB Feldspar small knife is D2. 

CJRB Feldspar small knife d2 blade

Grind is “flat” and the drop-point blade has a bit of a stonewash finish.

Retention

Carry of the CJRB Feldspar small knife is by way of a deep carry pocket clip. This clip ships attached as seen below.

CJRB Feldspar small knife pocket clip

Unlike most other CJRB knives the pocket clip here does reside in a specific cutout in the body. That’s great, and shows one extra level of detail (at least in the Large vs Small Feldspar!)

CJRB Feldspar small knife pocket clip profile

The clip is also reversible – below you can see the opposite side, where the clip isn’t.

CJRB Feldspar small knife pocket clip is reversible to other side

Carry is tip-up only!

Conclusion

The CJRB Feldspar small knife with G10 scales has great build quality and rides quite “slim” in the pocket. I appreciate the deep carry clip and access to the thumbstud is excellent, too. For the price, I’d say it offers fantastic value! 


Notes

  • CJRB provided this knife for review. I was not paid to write this review.
  • This content originally appeared at zeroair.org.  Please visit there for the best experience!
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1 thought on “CJRB Feldspar Small Knife (J1912S-NTG) Review”

  1. I wish my Small Feldspar opened and closed as easily as you suggest the one CJRB sent you does.
    It’s a combination of sticky and needing plenty of pressure as well as opening at just the right angle.
    I’ve owned mine for more than a year. I’ve lubed it and then tried it without lube. I’ve worked it for so many hours that my thumb couldn’t take any more.
    It’s just as difficult to open as it was the day I bought it.
    I’ve also owned six of CJRB’s RIAs. Love the wonderfully thin design. But I had to give away four of the six. They, too, were super sticky and had to be opened at just the right angle. Same issue as the Small Feldspar.
    At least one reviewer has mentioned the same problem.
    There’s also the issue of the Feldspar pivot screw requiring drivers to adjust the blade centering.
    For $58, I much prefer the KNAFS Lander liner lock, designed by the talented Ben Petersen.

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