Extra Rounds / More Style! We’ve added some design style to the new +2 Magazine Extensions for your Glock 43 by GS/Double Diamond. These attractive magazine extensions allow you to add two rounds to your existing magazines and provide a better grip which results in better accuracy. Each comes with an extra power spring to feed the additional rounds consistently every time and is designed with a very innovative system to secure the base plate to the magazine body. The magazine base plate inserts are also designed for a universal fit allowing for custom color combinations, and increased style and functionality, available separately here. We encourage you to watch the video for a complete installation demonstration.