Ruger Mark IV 4 22/45 & Lite OEM 10 Round .22 LR Magazine, E-Nickel - 90599Description:The Ruger Mark IV 22/45 Magazine is a standard factory OEM replacement magazine. This magazine is for Mark IV 22/45 models chambered in .22 Long Rifle and holds 10 rounds of ammunition. It is made of steel and is made to Ruger specifications and tolerances, using the same manufacturing and materials as the original equipment magazines, ensuring perfect fit and operation.FeaturesRuger Factory Magazine 90599.22 Long Rifle10 RoundsSteel Magazine BodyPolymer Base PlateE-Nickel FinishFits: Ruger Mark IV 22/45 Rimfire PistolsNote: Will NOT fit Standard Ruger Mark IV, non-22/45, models.