Ok, will this adhere to the laws of physics and give me around 340+ fps without compromising anything else in my gearbox? Remember, my p90's barrel is now at 433mm inside the silencer.
Systema (FTK25) Full Tune Up Kit P90 Standard, with a 4/5 hole cylinder replacement.
This contraption would also still be able to use my 8.4v 1200mah batteries, right?
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