Available for S&W N, K and L frame revolvers with round or square butt grip contour. Designed by Jerry Miculek, worlds' fastest revolver shooter. Narrow design allows for fastest draw and maximum control. One-piece construction features an open backstrap for a comfortable grip and excellent trigger reach. Attaches with supplied stirrup and screw. Small window on front strap of square butt grip allows both round and square butt grips to have identical outside dimensions. Available smooth or checkered texture. Made of beautiful and durable Pau Ferro hardwood. Features JM "Lightening " logo.