Hello
I have a brand new M4 which I haven't used until recently. I bought from Gander mountain which now has closed.
I put a extended tub and a magazine follower on it. When I fires a round the following shell will not cycle into the barrel or action and gets hung up near the base plate? So I have to manually pull the charging handle and then it cycles and fires.
Any suggestions as to why this is occurring? I am using good quality ammo etc.
Thank you