SHS High Strength Polycarbonate Piston w/ Steel Teeth for Airsoft AEG Gearboxes (Type: Standard / 16 Teeth / Black)

"I bought the 14 tooth lightened piston. It was to replace the old g&g piston that I had. The old piston was only polymer and had started wearing where the gears were engaging. This piston is actually lighter and more durable than the old piston. Would be an amazing piston even if it was $20. Even better piston for $12. If you are looking for a durable but lightweight piston, look no further.

"I love SHS pistons: they meet all the important criteria of a piston at a great price. My go-to for all my builds. One thing to note is that the 'High Speed Lightened w/ 14 teeth' (one with square holes as opposed to round holes) is about 1.5mm narrower than the one with round holes. That can be a problem depending on your gearbox shell. I put them in a Lonex gearbox and the piston was popping right off the guide rails. Could be the gearbox shell itself, so check your gearbox to make sure it's not one with a wider space for the piston before buying that model of SHS piston.

"Best piston for the money, it's always my go to for my builds and it's basically the standard go to option. You really can't go wrong with this thing. I've used these in ssg and dsg builds alike and I've never been disappointed.