ATI ATIM20BD5 Bulldog 5Rd 410 Gauge Black Steel Magazine Is Compatible With The ATI Bulldog 410 Gauge. Capacity: 5Rd Model: Bulldog Material: Steel Model Fit: Bulldog Brand Fit: American Tactical Imports Capacity: 5 Manufacturer: ATI Mfg Number: ATIM20BD5 Model: Bulldog