I wanted to test the PWS muzzle brake for flash as muzzle brakes tend to make huge amounts of it. My hypothesis was that the prongs on the front would do nothing to help. That turned out to be incorrect. The design does a great job of not exacerbating flash. My personal opinion is that if you wish you could have a flash hider, but cannot due to state regs, this is the best option I am aware of (for this purpose). I have no comment on recoil reduction as I did not test for that.
This set of images uses Lake City XM193 ammo which seems to have no flash retardant powder. M855 has much less flash. To make the test even more difficult, I used a 10 inch barrel. This is worst-case. Later I will post 14.5 barrel tests, which show a much different picture.
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