• Re-usable
  • Ability to perfectly time your muzzle device
  • Thread shield protects muzzle and threads
  • Can be used on any caliber with 5/8"-24 thread
  • Perfect for standard .750 barrel profile


  • Material: Titanium
  • Finish: BlackDiamond DLC
  • Weight: 0.18 oz.
  • Thread: 5/8"-24
  • Length: 0.407"
  • Outer Diameter: 0.87"
  • Inner Diameter: 0.77"


  • Any barrel with 0.750" outer diameter with 5/8"-24 TPI (Threads Per Inch)


When installing a muzzle device on your rifle, you have two main options to time the device properly. You can either use crush washers or a jam nut. Most people opt for crush washers since they are more simple and cheaper. However, they can be a little dangerous as well.

When using a crush washer, your muzzle device can get off-axis, which can cause your rounds to skim against the muzzle device and damage it. Moreover, this can significantly impact your accuracy.

Therefore, if you want to install a muzzle device and maintain the perfect accuracy of your rifle, jam nuts are the way to go. Iron City Rifle Works makes some excellent products, and here we have their Titanium Jam Nut PRO in a 5/8-24 thread pitch.

As the name suggests, this Jam Nut is made from titanium and has a Black Diamond DLC finish. It allows you to time your muzzle devices properly and features a convenient heat shield to keep your muzzle and exposed threads behind the jam nut safe.

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