Also when your setting up a gun you need to know what your source of ammo is going to be. If your counting on over the counter .223 to make it run most of the time you need to be pretty liberal with you gas and know your parts are going to taking a bit more of a beating with 5.56/nato spec ammo. If you keep the gas tight to run the 5.56 be prepared to practice your stove pipe and extraction failures when running .223.
Do you keep a couple different buffers on hand and change them out depending upon what ammo you are using?
