Query: 12 gauge shotgun drum magazine
NcDe Tatcical Flashlight & Scope Sight Mount Set, Barrel Clamp Mount with Standard Rail for 10~12 Gauge/13~15Gauge
NcDe 25.4mm/30mm Tatcical Flashlight & Scope Adapter Ring/Mount with Rail for 12 Gauge Tubes
Tactical Barrel Mount Rail Adaptor For 12 Gauge Shotgun Magazine Tubes Fits Remington 870 1100 Mossberg 500 590 835 930 935 Maverick 88 Winchester 1300 FN TPS Savage Stevens 320 Pump Shotguns
NcDe 25.4mm Flashlight Ring Mount