intentionally mismatching barrel to cylinder to control fps?

[Renegade)]

Ive been doing it for 4 years now on my M4. Non ported cylinder for a 350+mm barrel, just under 400 FPS. Swap in a shorter barrel for indoors, and it drops to 335fps. Accuracy is excellent on both set ups, I can even run the shorter barrel outside, you loose range clearly, but accuracy is just fine.

I hear it wears out parts more, since your putting more air through then you need, but I havnt seen it in all 4 years, same major parts.

[lurkingknight]

that thought had crossed my mind.... but I need a whole p90 body and gearbox to do so :P

Originally Posted by Styrak

Fix the other lower receiver, have 2 separate guns.