Found this thread googling for reviews on what other buyers have to say about the knife. I have one in-hand(received this morning). Ordered from Blade HQ, at the $139 price mentioned above. The "button" in the poor picture that's made the rounds is the whole button, not the little bump. Internally the nub that engages the notch in the blade is steel, not brass like most of the conversions. My favorite part-the scale is actually riveted to the handle at the pivot end so no worry about it pulling away from the handle like all three conversions I have had. Also, the spring looks to be an internal coil spring around the pivot, not a full length leaf spring under the blade. Very minor blade play that disappears when locked open and the sheath has an internal stiffener to avoid accidentally pushing the button through the leather. They sold out within 5 minutes of me submitting the order, and it was the second time they've showed up on-hand.