Derya MK10 O-Rings

[tenringbound]

Hey there, took my unfired MK10 out yesterday, put 75rds of Challenger 00 Buck through it and then 50 Winchester white box 7.5 target loads. Gun worked great until I took it apart to clean it. On the barrel where the gas vents are there is an o ring that got completely chewed up when I reassembled the gun. I replaced the oring 3 times now and every time I try to put the barrel on the tube it rips the oring apart. Anyone have this experience before or suggestions? Is there a place to buy the factory orings? Thanks!

 

[tenringbound]

Just an FYI for anyone who’s interested (I’m guessing not many lol), but the gas piston should be installed in the gas block before reinstalling on the gun, allows the tube to slide past the oring and not catch on it. Took me 2 orings to figure this out unfortunately, always learnin’ the hard way!