The 90715 model, courtesy of Ruger, is an E-Nickel Teflon coated hardened steel factory magazine that has been specifically designed for the MAX-9 pistol. This unique item comes readily equipped with an extended floorplate affixed to it.
Please note, however, that this magazine is not compatible with other 9mm pistols from Ruger. Made strictly within the confines of the USA, this product stands as a Genuine Ruger Factory Accessory.