I have a bushmaster M4 right now. I bought the rifle because I am in the Marine Corps and want to practice shotting for the way we shoot at the range. I already have added a military issue sling and ACOG, rail system and hand guards. My question is what else on my rifle should I swap out to make if feel as much like the colts we shoot at the range? Or if anything else, what else should I swap to make it a better rifle. I was thinking of starting with a better charging handle and buffer spring. What else?
Thanks
Sgt H
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