Colour: Black Make: Browning,Enfield,HOWA,Mossberg,Remington,Smith & Wesson,Weatherby Material: Aluminum Model: 1500,1550,1600,1700,40-XL,700,700 ML,721,722,725,78,BSA Monarch,Monarch,Remington 721 Style,Vanguard Number of Bases: 1-Piece Style: Weaver-Style Bases,Rear Base Delivery weight: 0.045kg