HIVIZ Magnetic Ultra Narrow Front Shotgun Sight -The sight is made to fit the Beretta (686 & 687 models with ultra narrow rib, AL390, A304, AL390 Field, 391 Urika Field), Browning (Gold Series, 28-gauge and .410 Citori), Sigarms (SA-3 Hunter, SA-5 Upland), and the Benelli (20-gauge). Weight- .5 ozDimemsions - 5 x 3 x .2 inchMade to fit Beretta-Browning - BenelliModel- M200