OK,
enquiring minds need to know ....
how did you port the barrel without getting chrome flaking off from the bore lining??
Dlask does a very inexpensive 14 barrel chop and thread the muzzle to AR 15 specs, which allows for interchanging "MUZZLE BLING" at whim, but a permanent port on the original barrel is another neat way to go ... provided the chrome bore doesn't flake at the port holes,
OR,
provided you use a NON-chromed barrel, Like Thomas' Kreiger.
If you can do a port on the chromelined barrels without losing accuracy from flaky bore chrome, we would be mightily impressed.
[;{)
LAZ 1