The Strike Industries Mag Extension for Glock 17 & 22 is a durable and reliable magazine base plate made of polymer material. Designed specifically for GLOCK handguns, this extension is compatible with both the G17 and G22 models, providing reduced recoil for improved shooting performance. Produced in the United States, this black magazine base plate is a high-quality accessory that enhances the functionality of your firearm, making it a valuable addition for hunters and sportsmen looking to improve their shooting experience.