Someone on Canada Guns Reddit had their Siberian BCG break in under 50 rounds. Hopefully that's a one-off QC issue.
I think you need to expand on what "high round count" and "minimal gas system service" actually means
Based on what I've experienced with 180s, they'll keep on chugging well past 1500 rnds.
I can vouch for NEA/BCL warranty, they were great to me the many times I had to use them. I assume they've only gotten better over the years since I've last dealt with them.
The reddit OP said the receiver is mangled too. These Canadian shi* sticks keep getting more expensive and less reliable.
i guess its a new world record for broken sub 50rd.
let me tell you a story. Henry makes cheap products but sells for premium money. He is very great to his customer because every time he would replace the whole product for free when anything fails. Over the years he had replaced so many but still he makes lots of money. I asked him why, he said the money I sell for one would cover 5 products.