Ithica Model 37 Trap ventilated Rib 12 Gauge for sale
Amazon.com : TRUGLO Pro-Series Magnum 1/4" Gobble-Dot All-Metal Sight with Elevation Ramp for Ventilated Rib Guns, Fits Most Charles Daly and Remington Models : Sports & Outdoors
Shotgun Picatinny Vent Rib Scope Mount for IZH-27,MR-153/155, MP-233, – ohhunt