AK74 muzzle brake

[CGRifleman]

How long is the Arsenal AK74 muzzle brake? If I were to permanently attach one to a K-Var FSB/gas block combo on a standard-length gas system, would it reach 16" or be an SBR?

 

[CnRnut]

You will short of 16".
Someone does make an extended copy just for this reason.
Let me see if I can find it.

 

[Effigy]

Just measured the one on my SGL-21: 3.25" end to end.