The PMAG 21 GL9, 9mm, 21rd for Glock 9mm handguns. Meeting the overall length requirements for a 140MM competition magazines.Features a high visibility controlled-tilt follower, a stainless steel spring, a floorplate that's easily removable for cleaning, a paint pen dot matrix for magazine marking, ridged floorplate edges for better grip and capacity indicator windows. The PMAG 21 GL 9 drops free from the firearm whether it's loaded or unloaded. The PMAG 21 GL9 is compatible with all full-size, compact, and sub-compact double-stack Glock 9mm variants with some protrusion below the grip. Made in the USA.