This Tippmann Arms magazine is designed for the M4-22 rifles and pistols, chambered in .22 LR. It offers a convenient and protective design with features that enhance its durability. 25-round capacity for .22 LR Easy loading with sliding dust cover Compatible with Tippmann Arms M4-22 This magazine is built to match the quality of the Tippmann Arms M4-22 platform, ensuring compatibility and ease of use. It is not compatible with .22 WMR models.