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JG Polycarbonate Piston & Piston Head Set w/ Half Steel Teeth

9 Customer Reviews

by Bill S. on 01/31/2021
"Great air seal, quality piston. Good and cheap
by Ryan A. on 03/01/2019
"I love this piston & head set. Super cost effective. I swiss cheesed it like you wouldn't believe and I'm running and ICS 3-teeth removed short stroked sector gear @ 320FPS .20g BB in my APS UAR resurrected with a custom fab hair trigger. I would consider that a low stress setup so I expect it to last a long time. JG always has reliable parts, but remember to AOE correct your piston AND cylinder head if you want maximum longevity.
by Kenny O. on 11/19/2018
"Graet pistol and piston head for five bucks!
by Eric M. on 11/03/2018
"This pistol is awesome! Amazing price and works great! Recommend for all your repair tune up needs
by joe f. on 03/02/2018
"This piston is stronger than the piston in my stock Classic Army and is much stronger than the Lancer crap. If you have a CA or a Lancer, upgrade the heck out of your gun with this piston.
by Huong V. on 07/10/2019
"Great Piston for $5. Most pistons at this price are all plastic teeth and no piston head. Considering this is only $5, half the teeth are steel and it comes with a piston head, THIS IS A GREAT DEAL. Definitely get this if you need a replacement or an upgrade from a plastic tooth piston. Can't say anything else about it since I just installed it in my gearbox.
by Jose G. on 03/23/2018
by Ryan T. on 08/10/2018
"awful compression had to stretch the o ring for a whole night and still didnt help

on the other hand, the piston seems well built and is very light

i would recommend for people to buy a separate O ring or piston head
by Kevin S. on 05/14/2020
"TLDR: metal and polymer teeth aren't flush. Parted out for piston head and metal teeth.

The insert for the metal teeth doesn't sit even, it starts flush where the piston head is and rises as you go toward the polymer teeth. Beneath the metal tooth insert, the piston itself has a gap and it appears the edges of the gap angle the metal insert upwards, with nothing to push the metal insert back down and keep it flush. I tried it out with my gearbox split and it did not operate smoothly by hand, so I'm not about to trust it under proper power.
Two stars because I was able to salvage the piston head and the metal teeth, but the piston design seems suspect.