Cylinder swap advice, Krytac LMG

[Stevo4345]

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?

View attachment 49945

 

[E21A]

If it ain’t broke, don’t fix it. Provided the compression is good, use the original. 

 

[AK47frizzle]

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

 

[Stevo4345]

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.