Expand your capacity with the Glock 43X/48 Magazine Extension, crafted for a seamless fit and enhanced performance. Precision-engineered for durability and reliability, it's the ideal upgrade for Glock owners looking to maximize their firearm's potential. Features : Aluminum Construction Adds 4 Rounds of 9mm Extension Provides Added Control and Increased Purchase Includes New Power Spring Fits Glock 43X/48, 10-round Magazines Only GLOCK is a registered trademark of GLOCK Inc. 3CR Tactical is not affiliated with, endorsed by, or sponsored by GLOCK Inc. Any reference to GLOCK products is for identification and compatibility purposes only.