The Volquartsen Extended Magazine Release allows the magazine to sit higher in the frame. This improves feeding by preventing the bolt from sliding over the round in the magazine. It's also knurled for both aesthetics and feel. The Volquartsen release will work with the factory magazines however due to magazine being raised, it is highly recommended the Magazine Release is used in conjunction with Volquartsen Magazine Base Pads (sold separately). Note: When the release is used with factory magazines and basepads that the magazine will sit just past flush on the bottom of the frame. FeaturesBlack nitride finishOnly compatible with MK IV 22/45-style pistols