The Mossberg 95138 Factory Magazine for 590M offers unparalleled reliability and performance for your firearm. Constructed from durable polymer, this magazine provides a secure fit and ensures optimal functionality, meeting the highest manufacturing standards. Engineered specifically for the Mossberg 590M Mag-Fed models, this magazine is designed to accept only 2-3/4" shells, allowing for streamlined operation and enhanced shooting experience. 2-3/4" Shell Length Only Polymer Body Material Fits Mossberg 590M Mag-Fed Only Elevate your shooting performance with the Mossberg 95138 magazine, where reliability meets precision.