This is the factory custom model. It is CTS-204P steel with a 3 1/2" blade. The detent is perfect, not to light or two heavy. The lock up is at 40% and the blade is dead centered. I had heavyhand on the forum do a professional sharpen on it when I first got the knife. It is really sharp now. I send him all my knives to be sharpen when I get them. They are so easy to maintain after he sharpens them. I was wanting to trade this knife for spyderco sprint militaries, chinook 4, ZT562 or I will sell it cheap. I can text or email you pictures. 276-696-5104