Stevo4345 Posted September 24, 2019 Share Posted September 24, 2019 While I’ve got my gearbox open to sort out a compression issue I remembered I had a Systema piston laying about that I got in a box of parts. Theres nothing wrong with the original piston, both have the same teeth count (though I would have to cut out the second tooth on the Systema. Original is plastic, other is metal. Undecided which to put in, have heard it’s not a bad idea to have some plastic teeth as it acts as a kind of fuse if anything jams up. The lighter plastic will also reduce stresses due to the higher ROF. What do you guys think? Link to comment Share on other sites More sharing options...
E21A Posted September 24, 2019 Share Posted September 24, 2019 If it ain’t broke, don’t fix it. Provided the compression is good, use the original. Link to comment Share on other sites More sharing options...
AK47frizzle Posted September 24, 2019 Share Posted September 24, 2019 Keep the plastic. It will be faster and far easier to shave off teeth for aoe correction when needed. For compression, it's mainly the o-ring against the cylinder. I'd recommend viton o-rings as they have the best air seal i've ever seen: https://www.kingdomofairsoft.com/product-page/viton-o-rings Link to comment Share on other sites More sharing options...
Stevo4345 Posted September 24, 2019 Author Share Posted September 24, 2019 Cheers for the replies, original it is. @AK47frizzle funny you should mention that, got some viton orings arriving today courtesy of ak2m4, I wasn’t aware they were a thing but he recommended them straight off the bat. Link to comment Share on other sites More sharing options...
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