In my opinion this style brake is an upgrade worthy of the $58 (if not more) they're charging for it. It's the best 24mm AK brake I've used thus far.
Pros:
-Recoil reduction
-Faster follow up shots
-Looks great (one man's opinion)
-Increase in velocity
-Gas is directed to the side and back so shooters on your left and right will not get as much muzzle blast as they would with a traditional AK 74 style brake
-Quieter from the perspective of the shooter
Cons:
-Slightly longer (maybe 1/2'')
I don't have a working digital scale at the moment so I can't compare weight but it feels roughly the same as the SGL 31 brake.
Chronograph data with 60gr FMJ Silver Bear ammo:
No Brake: 2912fps
SGL Brake: 2924fps
SRVV Jet Brake: 3072fps
Roughly 150fps faster with the Jet brake.
Product link:
http://www.srvv.org/en/catalog/1317/29861/
