wolf ammo in a AR??? how could you thats like burning the american flag a big no no!!! that junk powder they use in their ammo clogs the hell out of the gas tube of an AR eventually after around 3,000 rounds of wolf ammo you will have to re-do the whole gas system if you keep using wolf............ an AR of any make with good ammunition and regular cleaning should last 10,000 rounds before you have to do anything to the gas system.