If you plan on going the normal (and the easiest) route with the muzzle end of your .223 or 5.56mm chambered AR by adding a muzzle device, you'll need a crush washer. This is the right one needed. You just slide it onto the threading of your barrel, tapered end first, crowned end facing out, screw on your muzzle brake, compensator, or flashhider to finger tightness and then use an armorer's wrench to time it a quarter turn at a time, backing it off after each turn, until the device it aligned properly. Yup, it's that simple. See below for more info.
- CNC machined high quality steel construction
- Black Oxide finish
- Designed for 1/2"x28 Thread Pitch
- Fits: AR-15
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