ATI ATIM12BD10 Bulldog 10rd 12 Gauge Black Steel
http://www.tandktactical.com/shop/819644026273-ati-atim12bd10-bulldog-10rd-12-gauge-black-steel-24147
http://www.tandktactical.com/web/image/product.template/24147/image_1920?unique=088e98c
10rd magazine is compatible with the ATI Bulldog 12 gauge.