Steyr ATD/ATC 9mm 18rd Magazine

A spare magazine is the cheapest thing you can add to a range trip. This is the 18 round 9mm magazine that feeds the Steyr AT series pistols, the ATD and the ATC, in the same double stack pattern the gun leaves the box with.

Buy two or three and stop loading at the bench between strings. Magazines are also the part that wears: one that has been dropped on concrete a few hundred times will eventually give trouble at the feed lips, so rotating a fresh one in and retiring the beaten up one is cheap insurance against a stoppage.