Favored by competition shooters and civilian target shooters nationwide, the Check-Mate® 1911 .40 S&W 8-Round Stainless Steel Magazine w/Removable Base features a durable, corrosion-resistant stainless steel body with a removable base plate, designed to deliver unmatched reliability in virtually any environment. The high-tensile steel spring and a Check-Mate steel follower deliver exceptionally smooth operation, and the factory-machined witness windows allow for quick, visual round counts while on the move. Better yet, this magazine is backed by a limited lifetime warranty for lasting field service you can depend on. Order today! Made in USA.