Threads were being posted all over about PolarStars shooting "bricks" and there was a heated discussion here about what to do about all of it. There was no shortage of completely idiotic ways to fix the problem. They ranged from forcing users to use the highest regulator pressure at the lowest rated nozzle in order to get under the 400 FPS limit, which would've been extremely wasteful of air on an already relatively inefficient platform. For airsoft, AEG batteries have much more energy...

Before my time, back in the age of what we now refer to as "classic" airsoft guns, a vastly different method of applying backspin to the BB was used. Sheriff, a now extinct company, invented and patented the Long Range Barrel (LRB) system for many classic airsoft guns. In essence, it was a seemingly straight inner barrel with a curved bore as shown here:


Image courtesy of car15kokusai:...