TexasCHLforum.com

Pawpaw wrote: The #1 problem with the M-16 when it was first introduced in Viet Nam was the lack of a chrome lined barrel and chamber. When the rifle was the least bit dirty, corrosion would set in and cause extraction issues in the middle of a firefight. I realize not many of us live in a jungle environment, but I want that extra protection just in case.

Not really, the first versions (not talking about the AR15 model) of the m16 / xm16e1 (with fa) were being shipped without cleaning kits because colt proclaimed it was a self-cleaning rifle. A delivery problem with powder types caused the fouling. Rifles that had proper cleaning kits did not have near the jamming problems the others did. The m16a1 was the masterful fix.

As above - the DD is a better barrel imho. When you buy the barrel make sure the receiver and barrel are either standard or m4 style. There is a slight difference. Then get out the dremel and smooth the ramp to eliminate any lip that could be present between the upper receiver and the barrel extension.