Andrey Biryukov Sigma 4.1" Ti flipper CPM s125v 62 HRC

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For sale is Sigma S125V - a very unique4.1" titanium framelock flipper made by famous Russian knifemaker Andrey Biryukov. Andrey is well known among Russian hunters for heat treatment of his blades.

The knife is brand new, has never been used. Has the following unique features:
1. Blade is 4.1" (103mm), 0.015" thick behind the edge, CPM s125v at 62 HRC heat treated by Andrey himself and is wicked sharp
2. Weight is approximately 4oz. - titanium frame is milled from inside for weight savings
3. Ti machined pocket clip and custom hardware (the knife comes with the key bit for pivot and pocket clip)
4. Single row ceramic bearings in brass separators roll on hardened steel washers (the blade fires with great authority from any position)
5. Ceramic roller detent similar to the one on Hoback knives (detent rolls inside the steel frame insert, which gives the knife an incredibly smooth deployment action)

The knife is perfectly centered, lockup is rock solid with zero bladeplay in any direction.
Comes with clear box, leather pouch, certificate, and the key bit.

Price $330 shipped CONUS

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