Here is a rare and hard to find gun magazine for amt backup 45 guns. This is a 5 round 45 acp stainless steel made by Triple K to the same standards as the factory original magazines. It has a high strength spring and a stainless steel follower. FREE shipping on orders over $75! Orders shipped within 24 hours except week-ends and holidays. Gunclip Depot has the largest selection of Amt magazines .