Detailed fitment and dimensions for AR15 and AR10 Ejection …
AR PLATFORM eJECTION PORT DUST COVER SIZING, FITMENT, AND DIMENSIONS. A detailed overview . ar15 Dust cover details. When you are getting ready to upgrade, replace, or simply install your first ejection port dust cover, it is a good idea to take a moment and make sure you have a standard Mil-Spec size ejection port in order to …