Ultimate Arms Gear Chamber-View Mossberg 500 535 590 835 Maverick 88 .410, 12 & 20 Gauge Semi-Auto and Pump Style Shotgun Empty Chamber Safety Flag Load Indicator Designed To Fit Most Currently Available Side Ejection Semi-Auto and Pump Style Shotguns. Tapered Design Allows To Fit In Most .410, 20 and 12 Gauge Shotguns. It Has Also Been Tested and Will Fit Into Some Discontinued Shotgun Models Not Readily Available. Safety Indicator is Made of Durable Polymer & Can be Used Over and Over. Color: Safety Orange. Offer you a Load Indicator that is "Safety You Can See"