The Auto Prophet had his Beretta M9 and Remington 870 mag-na-ported …

The Beretta M9 was never a very hard recoiling gun to begin with, but I do think the porting helped reduce muzzle rise. It was quite pleasant to shoot. I did notice the bright orange gas streams venting upwards to either side of the barrel, but they were gone so quickly that they were not obtrusive. I need to go back and shoot some +P ammo, as I only had Winchester white box for this trip.

The 870 was still a 12 ga shoulder bruiser, but I also felt that the muzzle rise was reduced. Additional flash from the vents was not very apparent to me.