Promag designed this double-stacked magazine for the Smith & Wesson 5900 series.
The maximum capacity for this magazine is (10) rounds. Will only hold 9mm Luger rounds. Constructed of a strong steel to avoid detriment, and given a blued finish to avoid corrosion and wear, embedded with a hi-tensile compression spring to assure a smooth transition between the magazine and chamber.
One characteristic about Promags reputation is the process and dedication that goes into their manufacturing process and that has held true since their conception. This dedication to only turning up superior and dependable products for whatever occasion, has kept their integerty strong and reputation solid for many years.