Buck Muskrat B372BRW model series 5836. The Buck Muskrat – B372BRW is a double bladed knife. Middle of the road in size, the blades are forged from 420HC Stainleass Steel, one a clip style, one a spey. The blade finish is Satin. This knife features Nailpull Slipjoint actions and is in the folding category.