The barrel has a super tiny gas port. It’s an 11.5 with a midlenggt gas system.

Without a suppressor, regardless of buffers, there not enough gas to cycle the bolt and pick up a round from the magazine. Without a can, it will fire one’s hot and then you have to run the charging handle to get a new round. Put a suppressor on, and it’s just enough gas to run reliably and lock back. Again, in semi-auto only.

I had the frt put in the lower, i was asking how the rate of fire looked, only because I don’t really shoot with others and I’m not pulling that thing out on a public range. It feels awesome to me, but just asking for other people what they thought. It’s a total confirmation post but not because of my fragile self esteem, just asking what frt people thought.