NEA barrel Threads?

[onlyneed1shot]

Does anyone know what the specs are for the NEA 14.5" barrels? i.e. 1/2 x 28 TPI....?

Im looking to replace my flash suppressor with a muzzle brake.

Any help will be greatly appreciated.

 

[Chemist]

1/2 x28

 

[onlyneed1shot]

1/2 x28

Thank you, much appreciated.

 

[frumpy]

1/2 x28

Would that also be correct for their 10/22 barrels?