Description Increases magnification of Firefield 3x30 Prismatic Sight by 1.5x. Included in Package Lens Cover Cleaning Cloth Manual Features Quick and easy attachment Fully multicoated optics Increases magnification of Firefield 3x30 Burst Combat Sight EXPORT CONTROL NOTICE: This product is controlled for export and in-country transfer under the Export Administration Regulations (EAR). division contrary to U.S. law prohibited. Specifications Diameter, Lens, mm 30 Magnification 1.5 (x) Magnification of the 3x30 Prismatic Sight when used with lens converter (x) 4.5 Field of view of the 3x30 Prismatic Sight when used with the lens converter (m@100m/ ft@100yds) 8.78/ 26.3 Maximum Recoil 800 G&';s Body Material aluminum with rubber armor Material, Lens glass Lens Coating Fully mulitcoated, AR Green Length (in/mm) 52 mm Width (in/mm) 41 mm Height (in/mm) 41 mm Weight, oz 4.1 Operating temperature, F/C 0 to 120 / -17 to 49