This is a 50-round drum magazine for Springfield XD-9 pistols, manufactured by Promag.

It features a full-length steel insert and polymer drum housing. This is the highest-capacity magazine available for the Springfield XD-9 pistol.

• Body made of DuPont Zytel-based polymer
• Heat-treated steel magazine upper
• Holds up to 50 rounds of 9mm
• Helpful loading lever