I'm gonna build my own 13.7 upper so I went ahead and picked up a noveske 13.7 chf barrel to build it around. Its the infidel I believe. On the actual infidel rifle noveske uses their flaming pig that adds back pressure. Question is will using something like the solgw nox to get it to the legal 16.1" oal change the reliability of that barrel? I have a blem bcm stripped upper and noveske bcg so all quality parts.