This Pro-Tech Runt J4 Custom automatic knife has a Damascus steel blade and an ancient mastodon tooth inlay with a vertical grain. The firing button is a mosaic pin.
This J4 Runt Damascus Custom features a black aluminum handle with Ancient Mastodon Tooth inlays and a mosaic push button. The blade is stainless Chad Nichols Damascus steel with a plain edge. The 1 7/8" blade is California legal. Despite the Runt's small size it feels very good in the hand, it feels much bigger than it is. It opens like a rocket and lockup is solid. The J4 Runt also has a custom polished steel pocket clip for tip-down carry.