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Common Barrel Threads


As suppressors (or silencers) become more and more popular, many rifle and pistol manufacturers are threading the barrels of their firearms. Some of these manufacturers try to adhere to common industry standards...others do not. It would be nice is there was a list of all manufacturers that included all of their calibers, barrels and threading options....but sadly there isn't. Hopefully this list will be a start toward that goal.

This list is just a starting point. It is your responsibility to verify any information that you see here. We are not responsible for any of the information provided here...it is your responsibility to verify the thread pattern of your firearm before making any purchase or before using any muzzle device.

If you know of any errors in this list or if you know of any additions that need to be made, please contact us with that information.


With that being said, here goes:


.22 LR, .22 MAG, .17 HMR, .17 WSM :

Common thread is 1/2"×28.


- 1/2"×28 is the most common

- H&K  uses  M13.5×1 LH

- Sig Sauer uses M13.5x1LH

.40 S&W

- 9/16"×24 is the most common.

- H&K  uses  M14.5×1 LH


- .578"×28 is the most commons.

- H&K USP Tactical uses M16x1 LH

- H&K Mark 23 (Socom) uses the M16x1 RH

5.56mm (.223)

- 1/2"×28 is the most common

- Steyr Aug uses M13x1 LH 

- H&K  uses the M15x1

- Ruger Mini uses 9/16"×24 

7.62mm (.308)

- 5/8"×24 is the most common

- Sako TRG uses the M18x1

- Accuracy International  M18x1.5

- AK-47s use M14x1LH


- 5/8"×24 is the most common 

- Sako TRG uses the M18x1

- Accuracy International uses the M18x1.5

- Desert Tactical Arms uses the 3/4×24


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