Tyrant CNC Glock Magazine Extension Features The Tyrant CNC Magazine Extension is machined from aerospace grade aluminum giving the base pad enough added weight to help a magazine drop free from the pistol quickly and consistently during a reload. This extension adds 6 rounds of 9mm capacity or 5 rounds of .40 caliber capacity depending on which caliber magazine it is installed on meaningfully increasing the ammunition a shooter carries in each magazine. A new power spring ships with every extension ensuring the magazine continues to feed reliably at its new higher capacity rather than relying on a stretched factory spring. Smooth chamfered edges on the extension keep it comfortable to handle and free of sharp corners that could snag on clothing or gear. Installation requires no tools and takes only seconds making this an accessible upgrade even for shooters without a gunsmithing background. The extension fits the Glock 17 19X 22 34 35 and 45 covering a wide range of popular full-size and competition Glock models. Beyond added capacity the extended base pad also provides a larger gripping surface at the bottom of the magazine giving the support hand more control during a fast reload. For competitive shooters and anyone who wants more rounds on tap this Tyrant CNC extension delivers a quick tool-free capacity upgrade. Tyrant CNC Glock Magazine Extension Specifications Manufacturer: Tyrant CNC Model: Magazine Extension Color: Gray Finish: Matte Material: Aluminum Capacity Increase: +6 Rounds 9mm / +5 Rounds .40 Compatible Hosts: Glock 17 19X 22 34 35 45 Length: 1.15 Weight: 1.3 oz Includes: Power Spring Available At: GrabAGun