SACair Forum

I have a magpul m4 upper reciever and the dust cover will not close. I have a dust cover to replace it but I can't seem to figure out how to remove the existing dust cover on the M4. does anyone know how to remove the dust cover on a magpul upper reciever.

should be a little metal pin or rod through the spring for the cover, just pull it out. there might be a small C shaped washer blocking it.