Its literally a metal rod - Griffin Armament Suppressor Alignment Check Rod

Nothing special just a metal rod that’s straight and guaranteed to be straight. Is it worth $60+? Maybe if it was made out of pure silver. At the end of the day, most people won’t need an alignment rod, particularly if you buy a factory rifle and just add a muzzle device. If you built your rifle completely then yes, I’d recommend it since no factory is doing any precision checks for you. At the end of the day, I wish I hadn’t purchased it and won’t purchase another one. Alignment rods are pretty much a Reddit user thing, I learned my lesson.