XTech Tactical Mag Sleeve Features The Xtech Tactical Mag Sleeve Kit is built to slide over a 17-round Glock magazine filling the gap left when that magazine is used in a shorter Glock 19 or 23 frame. It fits Glock 19 and 23 pistols in Gen 3 4 and 5 FS configurations giving those compact and full-size 9mm and .40 caliber platforms a cleaner flush grip when carrying higher-capacity magazines. Because the sleeve does not fit non-FS Gen 5 models shooters should confirm frame compatibility before ordering. This is a sleeve-only kit and does not include the magazine itself. Constructed from polymer the sleeve is lightweight and designed to snap securely onto the base of the magazine without adding significant bulk. Manufactured in the USA it carries the same build quality and lifetime warranty backing that Xtech Tactical applies across its Freedom Series accessories. It is not manufactured authorized or endorsed by Glock but is engineered specifically around Glock magazine dimensions. Shooters running extended magazines in a Glock 19 or 23 will appreciate the cleaner grip profile this sleeve provides. XTech Tactical Mag Sleeve Specifications Manufacturer: Xtech Tactical Compatible Hosts: Glock 19 Glock 23 Gen 3/4/5 FS Material: Polymer Made In: USA Available At: GrabAGun