What is the point of the different "steps" in some of the barrels I've seen.....like on some Bushmaster AR's....like in the picture below.
Here are mine......no "steps".
Is one design better than the other???
*Edit* Nevermind.........just saw the answer in another thread. :)
I started a thread that is running very close to yours that answers your question: "Purpose on an M4 Barrel". Check it out.
EDIT: Oh, I saw that you just saw.