I'll take a few pictures of the rubber seated into a G&G crap alu barrel tonight it's nice and short so I reckon pictures are going to be well lit to show how the patch sits.
Need any particular measurement? like hop window width or anything?
No, just want to see what it's like in a standard barrel. I have a new Cyma M14 and it could do with a better rubber, might get a ZCI barrel in it so was wondering what the MR is like. I've used Macarons before and they've fit fine.
Here's a view of the contact patch sitting on the window
Here's the inside of the hop rubber (out of shape because of the packaging they come in)
Here's how it actually sits.
in RED the two parts that sit on the two flat side walls of the widow
in YELLOW the ring that is supposed to enhance the seal (in the first 2 pics you can see the rubber slightly bulging out in the middle, it's because of this ring)
(p.s. if you answer make sure to @ me as for some reason I don't receive status notifications)