Smith & Wesson Magazine, 9MM, 15 Rounds, Black, Fits Shield Plus/Equalizer 3015890 Compatible with the Smith & Wesson M&P Shield Plus and Equalizer pistol. The 9mm 15-Round Magazine maximizes your firepower potential" without sacrificing concealability" reliability" or control in fast-action environments. Featuring a proprietary single-to-double-stack design" the precision-machined steel body comes equipped with an extended polymer floor plate with a durable polymer finger extension for improved comfort and control" while the corrosion-resistant black finish repels water" dirt" and debris for enhanced reliability and consistent operation in virtually any target-rich environment.