S&W M&P9 Compact 9mm magazine, 12 round.

Smith & Wesson, Magazine, 9MM, 12 Rounds, Fits M&P Compact, Steel, Black
12 – Round Capacity
Steel Construction
Polymer Base Plate
Polymer Follower
Product Description
 
Smith & Wesson delivers unmatched superiority through innovative pistols, revolvers, rifles and accessories. Adding confidence to every shooting experience, Smith & Wesson magazines are built with precision and unrivaled craftsmanship.