Originally Posted by
Slater
Looking at some of Rock River's AR offerings, some are HBAR's with a Wylde chamber. These are neither Chromed or Nitrided, but apparently untreated barrels. They also have the reputation for being very accurate, and are oriented toward the competition crowd.
Does untreated CMV have decent longevity? Presumably a competition shooter would replace it when accuracy falls off.
I have a RRA 20" A2 that has one of these types of barrels (20” CMV (unlined) HBAR, 1:9 twist with a .223 Wylde chamber). It is a superb shooter. As long as one uses good ammo, does not do constant mag dumps, and keeps the barrel clean after use, there is no telling how many rounds one will have to go through before the barrel would warrant replacement. Typically, unlined CMV barrels provide excellent accuracy. As for my RRA, it never gets shot enough, so the barrel will last a long time.
"A Bad Day At The Range Is Better Than A Great Day Working"
USMC Force Recon 1978-1984
US Air Force Res. 1995-2004 (Air Transportation)
M16/AR15 shooter since 1978, gun collector and AR builder since 2004
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