NEXT LEVEL ARMAMENT EXTENDED MAGAZINE RELEASE BUTTON FOR AR-15/AR-308 Extended Magazine Release Button from Next Level. Next Level Armament machined each extended magazine release button from 7075 Billet Aluminum and finish with hard coat anodizing. The longer overall length allows easier magazine exchanges, and the extra diamond machining provides maximum grip. The release button fits both AR10/AR15 Platforms. It does everything you want a magazine release button to do, but better. The release button installs like the standard mil-spec release. They extended the length from .3a ^2 to .4a ^2, enough to enhance performance while keeping a low enough prof Mfg: Next Level Armament