Steambow M1 Compound Bow Black. The Fenris Compound Bow M1 is a specially selected and configured compound bow for the FENRIS-magazine Specifications for Steambow M1 Compound Bow: Manufacturer: Steambow Color: Black Fabric/Material: Aluminum Age Group: Adults Features of Steambow M1 Compound Bow Magnesium riser 7075 aircraft-grade aluminum cams Premium limbs Fenris sold separately from the compound bow Package Contents: Steambow M1 Compound Bow Steambow 305: M1 Compound Bow Black