This is a handmade custom piece by Andrew Demko. This is different from the midtech knife. This is 20cv steel and has the locking mechanism.
Only wear Mark is the snail trail on the Ti coating on the backspacer area. It comes with a knife pouch. There is some red in the gimping from the dye that is used on the steel when the blade is hand ground.
No functional issues, scorpion lock is very fun and strong. On bladeforums for even more of a deal (;). The item "Custom Demko AD-15 (Not Midtech) Scorpion Lock Folding Knife" is in sale since Thursday, January 04, 2018. This item is in the category "Collectibles\Knives, Swords & Blades\Collectible Folding Knives\Modern Folding Knives\Custom & Handmade".
The seller is "kylex3x3" and is located in Carleton, Michigan. This item can be shipped to United States.