BMI has guards under chains and accessories..or if you got any old sheet metal around and a pair of snips you could make simple 90° bends and drill some tabs to mount.. if you have a sheet metal flange tool is easy ..mine looks like a vise grip with a 4," wide jaw..I make my own guards..if you don't have a tool you can bend lighter guage metal on any 2X4 holding or clamping one side and pushing down..