The first and ONLY drum for the S&W 5900
Considering that the 5900 and 6900 series pistols are out-of-production, standard capacity magazines have become hard to find, not to mention higher capacity (17, 20 stick) mags. I've never seen a 50 round drum until now, so I just HAD to get one. Fit and function are typical ProMag quality, outstanding.
Richard A.