Here is one of my latest projects I built this one with mastadon ivory an Stainless , Nickel button ,this was a time consuming project but I thought it turned out ok , this design just cant be made without a minute bit of blade play no matter how much you try its just the nature of the design I think but its way Kool none the less the kick spring is carbon steel the locking lug is titanium , fires pretty hard an i put a sabre type blade in it hand ground an rubbed to 400 grit , enjoy