Mec-Gar Spare Magazine S&W M-659/910/915 17 RD

FEATURES

• Caliber 9 mm
• Increased 17-round capacity in a flush-fit design.  Features US Patent# 5,386,657 which provides two additional rounds without increasing magazine dimensions
• Carbon Steel Tube, heat-treated for strength
• High tensile music wire spring
• Polymer follower
• Removable steel butt-plate