Yeah, but what's the point? You're going to notice zero change in performance. Better motors only shine when the power source is limited, i.e. mini batteries. I assume you're using a large in the SG1, so you will notice just about ZERO change from motor. Gears, you'll only notice anything different if you go with high-speed gears. That's the only reason to put different gears in a stock gun. Unless you specifically want a higher ROF and the asscociated damage it'll do to your mechbox, gears are a bad idea. A new motor is a bad idea regardless.
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