Tyrant CNC +5/4 Mag Extension Features The Tyrant CNC +5/4 Mag Extension is machined from aluminum and finished in a matte black coating that matches the factory finish of most Glock magazines. It adds 5 rounds of capacity on 9mm magazines or 4 rounds on .40 caliber magazines giving the shooter meaningfully more rounds before needing to reload. A new power spring is included with the extension replacing the factory spring so the magazine feeds reliably at its increased capacity. The extension is built to fit the Glock 19 23 and 26 Gen4 and Gen5 platforms which share the same bottom half geometry and so accept the same part. Smooth chamfered edges along the extension give the shooter added purchase and control when drawing or stripping the magazine during a reload. Tyrant s NoBak advanced retention plunger technology lets the extension be installed and removed entirely without tools making it the quickest magazine extension of its kind to swap in and out. This tool-free design means a shooter can add or remove the extension in the field or at the range without carrying a punch or driver. The Tyrant CNC +5/4 Mag Extension does not work with PMAGs so it is intended specifically for factory and compatible Glock magazines. Tyrant CNC +5/4 Mag Extension Specifications Manufacturer: Tyrant CNC Model: +5/4 Mag Extension Type: Magazine Extension Compatible Hosts: Glock 19 Glock 23 Glock 26 Gen4/5 Color: Black Finish: Matte Material: Aluminum Length: 1.15 Weight: 1.30 oz Available At: GrabAGun