I had my K40 Magna Ported hoping it would tame the muzzle flip some. I didn't notice much difference. Rumor has it that inexperienced shooter would notice it more than long time shooters. Not sure how that works but it didn't help much. No negatives, looks cool and still accurate but still has a nasty flip.
In Memory of Paul "Dietrich" Stines.
Dad: Say something nice to your cousin Shirley
Dietrich: For a fat girl you sure don't sweat much.
Cue sound of Head slap.
RIP Muggsy & TMan
"If you are a warrior legally authorized to carry a weapon and you step outside without that weapon, then you become a sheep, pretending that JOCKO will not come today."