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Lonex Ultimate Upgrade M170 Polycarbonate Airsoft AEG Piston

9 Customer Reviews

by Madison M. on 05/10/2022
"I use this with the Lonex piston and cylinder set in my new ICS MARS II Carbine, primarily to disable the EBB and it works like a charm.
by Matt B. on 10/25/2019
"This is probably the strongest piston I have ever held. Not having a full teeth rack is a good thing because it allows for easier AOE correction, and short stroking when using a dremmel. The plastic feels very strong, and is pretty heavy. The heavy piston may even help with some minor Joule Creep. I have this installed on my Krytac MK2 SPR DMR build. Running an ASG 18000, ASG M135, SHS 12:1 gears, and the Lonex M4 Cylinder set. This thing is the perfect piston for a DMR build.
by Brandon P. on 02/25/2019
"Used this in unison with a lonex m16-a2 cylinder set and performed amazingly. Highly recommend.
by Nathan B. on 06/07/2018
"This is a great piston. I have it paired with the aluminum lonex silent mushroom piston head. Very satisfied with the performance .
by David A. on 08/09/2017
"Great little piston, used it to replace the one that came stock in my VFC MP5 after it tore itself apart after about two games.
by Amber B. on 02/05/2016
"So you should get this piston!!!! I absolutely love it!! The one in the pic has been used because the one I got is smooth and perfect in every way! I will be putting this in all my aegs!!! I'm using a 120 spring with it and lonex cylinder and getting 396fps!!!! Must have if your upgrading!!!
by Thaddeus K. on 05/13/2022
"Overall a solid piston, my only complaint is that the channels on either side of the piston that ride on the guide rails in the gear box are a little less wide than that of the OEM, this resulted in the piston rubbing on the guide rails, making more work for the motor and spring that drastically reduced fps. This, however was fixed with some subtle filing to make the channel wider. I would heavily recommend this piston for anyone running more powerful springs, but be aware that modification may be required depending on the gearbox you use. For reference im using a retro arms CNC gearbox
by Sebastian J. on 12/26/2019
"Good little piston, it's heavier than other options like the SHS and at the end of the day for the price I do believe the SHS is a better piston. But if you do not care about weight or just looking for a stock replacement this one does the job, there was very little wear after months of play using this piston.
by david m. on 09/13/2019
"I looked over the reviews and I bought this piston because everyone said it was good and other people have recommended it to me. I was surprised to see it malfunction in the first 100 rounds I put through it; It was and a high stress dsg, but that doesn’t give the teeth a reason to malfunction how they did. Most of the plastic teeth held up, but one of the teeth got stripped in a non-high stress requiring part of the piston, which led to my gearbox blocking up. It might be a malfunction of the product because the rest of the teeth looked to be in a pretty good shape, but I recommend buying a full metal toothed piston.

My gun has 10:1 dsg gears and an m170 spring.