Griffin armament suppressor alignment rods are a no-brainer! - Griffin Armament Suppressor Alignment Check Rod

If you have a suppressor then you need one of these. I have two of them now and they're both straight as can be. In the past I bought some rods from an industrial supplier and cut them down to 18" to make my own suppressor alignment rods, but they weren't always very straight and it took a lot of effort to cut, bevel, and polish the ends. These rods from Griffin Armament are good to go straight out of the box, the machining and polishing is flawless, and on top of that, they're laser marked with the size on them.