ive owned this piston for nearly a week now and have put about 1000rds on it. so far, it shows absolutely no signs of wear. not only has it help up strong, it is also extremely light and therefore gives off less noise when your airsoft gun is fired. please not that i am using a stock CA M90 spring, it shoots about 290-300fps. i own most of the planter enterprise (PE) parts from airsoft gi and this one doesn't fall short in terms of quality.
-produced by airsoft gi
-shows no signs of wear on low powered springs
-none thus far
Rating: [5 of 5 Stars!]