EXAMINE THIS REPORT ON COLT M16A1 FOR SALE

Wound up with that higher and It can be chrome bore barrel in the future.  I think It is an A1E1 from some nomenclature I noticed but unsure as I have never found One more a person. I figured this was created across the time of product or service advancement towards the M16A2 ?. I can do pics  if asked for .... well I attempted, but this site isn