Columbia River CRKT 7531 Jeff Park Crossbones Italian-Made Flipper Knife 3.475" M390 Satin Plain Blade, Two-Tone Titanium Handles


CR7531: Jeff Park 7531 Crossbones M390

Thinner, lighter, universal. High T-Score rating. This Italian-made Crossbones knife is crafted with premium materials and is limited to just 500 units—so when they're gone, they're gone for good. Each knife comes with its limited edition number printed proudly on the blade.

Originally designed by Jeff Park under the tutelage of master designer Ken Onion, it holds up to high standards while reflecting a fresh design and function. The Crossbones practically disappears when you slide it into your pocket, but it'll come out ready to face any task at hand.

The Crossbones is modeled after the first custom release of designer Jeff Park from Mililani, Hawaii. He's served as Ken's right-hand shopman for over ten years and, after much goading, finally released a custom design of his own.

The slim blade is crafted of high-quality M390 steel which offers supreme corrosion and general wear resistance. It's deployed quickly and smoothly with an IKBS ball bearing pivot system and, when open, held securely with a frame lock. The titanium handle, when closed, resembles the shape of a dog bone and gives the Crossbones its name.

Devoid of fluff and frill, yet dependable and universal, the Crossbones is a man's best friend.

About the Designer

One fateful day in 2005, he walked into Ken Onion's shop in Kaneohe, Hawaii, and never left. Well, that's not entirely true, but he's certainly made an impact on the world-class knife maker and has learned a thing or two along the way. Jeff Park is a detail-oriented type of guy, and by that we mean he's an absolute perfectionist, and it shows in his simple, yet flawless designs. He's an artist in the most fundamental respect: form follows function, and his knives reflect a remarkable understanding of both.
  • Individually Numbered. Limited to 500.
  • M390 Blade Steel with Titanium Handles
  • Flipper opening combined with IKBS ball bearing pivot system deploys the blade smooth and fast
  • Blade Length: 3.475" (88.27 mm)
  • Closed Length: 4.544" (115.42 mm)
  • Overall Length: 8.063" (204.8 mm)
  • Blade Material: Bohler-Uddeholm M390 Stainless Steel
  • Blade Thickness: 0.134" (3.4 mm)
  • Blade Style: Drop Point
  • Blade Finish: Satin
  • Handle Material: 6Al4V Titanium 
  • Locking Mechanism: Frame Lock
  • Pivot Assembly: IKBS Ball Bearings
  • Pocket Clip: Deep Carry Stainless Steel (Tip-Up, Right Carry)
  • Designer: Jeff Park
  • Weight: 2.8 oz.
  • Made by LionSteel in Italy

UPC Code: 794023753103

Titanium Handles
Titanium Handles A nonferrous metal, it's prized for its high strength to weight ratio and is often used on higher end knives.
Pocket Clip
Pocket Clip Includes a pocket clip for easy accessibility and a more secure carry.
Frame Lock
Frame Lock Developed by Chris Reeve, it functions like a liner lock but the lock is comprised of one of the handle scales. It's an extremely strong and easy to manipulate lock.
M390 Powdered metal developed for knife blades which provides good corrosion resistance and very high hardness for excellent wear resistance during hard use cutting.
Columbia River CRKT 7531 Jeff Park Crossbones Italian-Made Flipper Knife 3.475" M390 Satin Plain Blade, Two-Tone Titanium Handlesrated 5.000 stars out of 5 (1 review)
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Columbia River CRKT 7531 Jeff Park Crossbones Italian-Made Flipper Knife 3.475" M390 Satin Plain Blade, Two-Tone Titanium Handles
rated 5 stars out of 5
Grand Rapids, Mi
Aug 29, 2019
Pros: Lock Type, Handle Material, Overall Quality, Pocket Clip, Ease of Opening, Handle Feel, Weight, Lock Ease of Use, Blade Material
Cons: Blade Sharpness, None
The truth is that I just received this a few hours ago and what I say is first impressions. But I like it a lot, and since mine is #390 out of 500, I'm glad I didn't wait any longer. The blade is thick enough and long enough to be very useful in all sorts of situations, but thin enough from spine to edge to be really useful for opening mail and packages, which is one thing I'm constantly using knives for. I wish it were a hair sharper, which I wish for lots of factory edges, but I'll take care of that soon enough. The flipping action is terrific; you can't fail this, and no wrist action is needed. It's really dialed in. Unlocking is just a hair stiff, but I actually much prefer this to too-easy unlocking, so I like it, and the lockbar has a jimped area a little above the rest of the lockbar, making it more functional to unlock. By the way, if you want a blade that drops shut, this won't be it, but I've never felt the need for that. The handle is crazy ergonomic, partly because of the shape, but mostly because of the great texturing, which makes it one of the most grippy knives I own. I don't think it's even possible for anything to pull it out of your grip. And it just plain feels great and looks great. The clip works really well and is a pretty deep carry, and while I don't use lanyards much, the lanyard hold would work really well and is a unified part of the handle. While it's plenty long enough, it's also a knife that I will feel comfortable pulling out in social situations when I need to cut something. This knife is close to perfect. I will say to CRKT that I think when you're spending this much on a knife, some sort of protective pouch or bag should come with it, and it seems pretty cheap of CRKT not to include something like that. Finally, not that it's not strong enough, but I doubt if this will ever be a hard-use knife, at least for me, but will be extremely useful in all sorts of every day situations. Kudos to Jeff Park for the great design and to CRKT for excellent execution of the design. I'm glad I spent the considerably more money for this M390 version. I look forward to using this for many years.


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