When I first started playing with my Sport, I actually had a few "custom" made muzzle brake/flash suppressors made. over a 3 month period I experimented with them and factory made ones. I discovered that each one changed my point of impact differently with some of them not even consistently changing it. I still have a drawer full and ended up using a thread protector for the most consistent accurate shooting plus it reduced my sound signature tremendously. If anyone wants to try it they will find the same thing. I have never used minute of bad guy as my guide. Minute of prairie dog is what I go by. I have associates that have tried it and discovered the same thing so it is food for thought.

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Grover Oathkeeper