Two versions were produced, the Mk1 and Mk2. Both were designed by us, and manufactured for us by WE Knives. Both featured Grade 5 Titanium framelock handles and CPMS35VN steel blades. The Mk1 was the full size version, and the Mk2 was based on the Mk1 but the length and height of both blade and handle were reduced by 25%. The Mk2 also had minor refinements to improve the fit and finish over the Mk1.