Backup Tactical Mag Extension Features The Backup Tactical Mag Extension is built from durable aluminum and finished in black giving it a frag style texture that stands out while standing up to daily carry and range use. It adds a full plus 5 rounds to compatible Glock magazines turning a standard capacity magazine into a higher round count option without swapping to a different magazine body. An included extra power spring compensates for the added column height keeping feed pressure consistent all the way to the last round. A securing pin locks the extension to the magazine baseplate so the added length stays put under recoil and repeated reloads. Installation is straightforward with the extension spring and pin included in the package so there is nothing extra to source before it goes to work. The frag pattern on the extension body also improves grip when stripping or seating magazines quickly which matters during training drills or a timed reload. Fitting Glock 17 19 22 and 23 magazines this extension lets a shooter standardize on fewer magazine bodies while still getting more capacity out of each one. For shooters who want more rounds between reloads for self defense competition or range time the Backup Tactical Mag Extension is an affordable way to get there. Backup Tactical Mag Extension Specifications Manufacturer: Backup Tactical Model: Mag Extension Type: Magazine Extension Color: Black Compatible Hosts: Glock 17 Glock 19 Glock 22 Glock 23 Capacity Increase: +5 Rounds Includes: Extra Power Spring Securing Pin Available At: GrabAGun