The Systema Aluminum piston is much stronger than stock pistons and is designed for heavily upgraded guns. Aluminum pistons are much stronger than polycarb pistons but they also don't have as much forgiveness. To go along with a good aluminum piston you should also have a good set of gears, and they must be shimmed very well to avoid premature and uneven wear, and to avoid excess gearbox noise. Since Aluminum is heavier than polycarb it is highly recommended to upgrade stock gearbox shells to reinforced ones.
The use of aftermarket airsoft parts is not an exact science. Some parts may require fitting even thought they were designed to fit without modification. Professional installation of upgrade parts is highly recommended.
2008-01-24 16:58:39 T. BARTON verified buyer
For: Systema Aluminum Piston
This piston seems to be a great piston so far. I bought this one because I trust the name and had some torn teeth on my stock piston.I bought this from Airsoft GI . This piston is teflon coated as well, I don't think the description mentions that...
2007-05-22 22:41:41 S. SPANOVICH
For: Systema Aluminum Piston
I would buy this over any polycarb piston. It is about the same price, and it is very durable. It can handle m120s and m130s like it is nothing.
It DOES slow your rate of fire down just a hair, but it is not that big of deal. With a stock gun that is 800 rpm, if you popped this in, it would only be about 780 RPM. So its not that big of a difference.
There is a word that says that these strip easier than polycarb pistons. That is true, but if you do everything right (shimming, etc.) there won't be a problem. I've done tons of stuff wrong with my gearbox (i'm still learning a little bit) and this thing has not let me down yet.
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