i got to test the spring from the P90 im doing work on in my 416.. got almost 460FPS put of it which is equivalent to an M140. even on my set up with torque up gears, magnum motor and 11.1v Lipo, it was straining to pull it.
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Weapons Technician / Gunsmith
Don't look at me, I don't know, lol ¯\(°_o)/¯.
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