This is the Smith & Wesson M&P Shield Plus 50-round drum magazine, manufactured by Promag.

Featuring a blued-steel magazine tower and DuPont Zytel-based polymer drum housing, this Shield Plus drum magazine will hold up to the most demanding of conditions.

It’s quite simple to load – just rotate the hand-crank and drop a round in the magazine. Rinse and repeat.

While it may not be practical for everyday carry, it will be excellent for range days. Don’t be limited to just 13-rounds – take your shooting experience to the next level.

Pick up a Shield Plus drum magazine today!