Description The Smith & Wesson M&P22 pistol magazine is a standard factory replacement magazine. This magazine is for M&P full size pistol models chambered in .22 Long Rifle and holds 12 rounds of ammunition. It is made of stainless steel and is made to Smith & Wesson's specifications and tolerances, using the same manufacturing and materials as the original equipment magazines, ensuring perfect fit and operation.PRODUCT DETAILManufacturer Number: 422510000 Smith & Wesson M&P22 .22 LR Magazine 12 Rounds Steel Black Caliber: .22 Long Rifle Capacity: 12 Rounds Body Material: Steel Spring Material: Heat Treated Spring Wire Follower Material: Polymer Follower Color: Black Polymer baseplate S&W Factory Magazine Finish: Black