Our USA Manufactured knurled ejection port dust cover rod allows you to install a milspec style ejection port cover / dust cover without having to install the tiny c-clip that holds the rod in place. The end of the rod is knurled, preventing the rod from passing through the hole in the upper receiver. This method makes for a a smooth build without fighting small parts.
 
Ejection Port Dust Cover Kit – Knurled
Manufactured to milspec dimensions
Fits all common AR15 and M16 upper receivers
Ejection port (dust cover)
Knurled ejection port rod
Ejection port spring
Ejection port c-clip
Phosphate coated
Weight .8 ounces