The Böker Plus Extension Knife is possibly the weirdest knife I’ve ever seen. It’s like the guys who made G.I. Joes and Transformers in the 1980s made a full-size blade.
Designed by Hein, it appears to be a chunky, belt knife with a full tang 4.7″ clip point profile. What sets it apart is the extendable blade design. Press a button, and the handle flips end for end, doubling the exposed blade length. It’s more than meets the eye.
Now it’s a kukuri-ish profile blade, 7.3″ long, and ready for all kinds of bushcraft work. It’s made with D2 steel that is reasonably tough and edge-retaining.
It’s long enough for chopping and splitting kindling, but folds away to fit in the short sheath. Böker reports that it’s inspired by medieval Baselard swords, and the handle does seem to have a hilt.
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This blade is wacky, but it’s certainly not kitchy. It locks up tight and seems well-made.
The Takeaway
Who’s the Böker Plus Extension Knife for? Maybe for actual bushcraft use.
The short mode is a decent shape for processing carcasses, while the extended mode could help you win a reality TV show. If you’re into knives, this one deserves a look. It’ll be available in May, 2026 for $259.
Specs
- Brand: Böker Plus
- Type: Fixed Blade Knives
- Overall Length:11.81 in
- Blade Length:7.28 in
- Blade Thickness:0.20 in
- Weight:15.55 oz
- Blade Material: D2
- Handle Material: G10
- Made in:Asia
- Sheath Material: Kydex
- Available: May, 2026
- MSRP: $259
Learn more HERE.
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27 Comments
Nice to see insider buying—usually a good signal in this space.
Good point. Watching costs and grades closely.
Good point. Watching costs and grades closely.
Silver leverage is strong here; beta cuts both ways though.
Uranium names keep pushing higher—supply still tight into 2026.
Good point. Watching costs and grades closely.
Good point. Watching costs and grades closely.
I like the balance sheet here—less leverage than peers.
Good point. Watching costs and grades closely.
Good point. Watching costs and grades closely.
Production mix shifting toward USA might help margins if metals stay firm.
Good point. Watching costs and grades closely.
If AISC keeps dropping, this becomes investable for me.
Good point. Watching costs and grades closely.
I like the balance sheet here—less leverage than peers.
Good point. Watching costs and grades closely.
Good point. Watching costs and grades closely.
Exploration results look promising, but permitting will be the key risk.
Silver leverage is strong here; beta cuts both ways though.
Good point. Watching costs and grades closely.
Good point. Watching costs and grades closely.
Silver leverage is strong here; beta cuts both ways though.
Good point. Watching costs and grades closely.
Silver leverage is strong here; beta cuts both ways though.
I like the balance sheet here—less leverage than peers.
Good point. Watching costs and grades closely.
Good point. Watching costs and grades closely.