I have one. It shoots well, I rarely if ever shoot it in short configuration though, kinda loud but that’s to be expected from a 7.62 k can. It’s definitely quieter in full configuration.
When mounting it, make sure you twist the locking mechanism until you feel a “click.” NOT just until it seems like it bottoms out. Takes a decent amount of grip strength. My dealer didn’t really tell me anything about it and I only found out about the click/lock into place from someone on this forum.
If you do shoot it in the short configuration, put some anti seize on the threads of the end cap. I’ve had it get carbon locked on before and it’s kind of a pain to get off. Doesn’t seem to happen in long mode.
Don’t get me wrong, it’s a good can, just has some quirks.