I am looking to buy an M4. My job uses Bushmaster. I shoot it well. They had some extraction problems, but the "o" rings were replaced and it seems to have corrected the problem.
I have heard that DMPS is more reliable. Before I make any purchases I wanted to see what the members of the forum thought.
It would be to add to the home defense weapons already in place, Remington 870 and various handguns.