Increase firepower for the range or home defense with the Pearce Grip® +1 Magazine Extension for Glock® 26, 27, 33. This mag extension replaces the factory magazine base plate and internal floor plate and adds +2 rounds to Glock 26 mags and +1 rounds to Glock 27 and 33 mags while also adding 5/8" of additional length for improved comfort. This extension blends with the contours and textures of your pistol for a factory appearance and is constructed with high-impact polymer construction. Plus, this extension provides easy mag identification via Mag-Track. Made in USA.