Originally Posted by
viperashes
You're pretty much right on track T-Dot. The force of all the propelant gasses exiting the front of the rifle, rather than laterally, can increase felt recoil a bit. If you apply the physics to it, the device is designed to add more force to the BCG to increase dwell time and gas pressure, so in turn, yes, you are going to get a little bit more felt recoil because of not only that, but again, what you were speaking of, the gas being expelled directly forward.
Edit: I don't really want to speak in absolutes, I said originally that it does, but changed it to "can" because as with anything, there are other variables that come into play that may negate or add to felt recoil.