I bought a green mountain 18" rifle length gas tube barrel to try for tight groups at 200 yds. While it is more accurate, I think I prefer the 16" pencil profile. The factory chrome lined bushmaster barrel is plenty accurate for anything I'd use it for. It does get hot faster, but cools faster. Not even trying to chase tight groups anymore. If I swap it back what should I sell the GM barrel for? Should I just keep it as an extra? GM52. 223 wylde.
