Constructed of an impact-resistant polymer, the FN® FNS™ Compact 9mm, .40 S&W Magazine Sleeve allows you to comfortably utilize standard capacity FNS magazines (not included) with your FNS Compact handgun for maximized capacity, without forfeiting comfort. This easy-to-install magazine sleeve integrates seamlessly with your pistol’s frame and features aggressive texturing for a reliable, non-slip grip. Order today!