Just wondering what size jets guys are using with a 10” barrel on the 16. I ran a 1.85 for about 2k rounds of wolf steel case, 1000 or so of which was suppressed. The gun started failing to lock back and was not picking up succeeding rounds after this point. Cleaned the piston for the first time and thourouhly cleaned the carrier, bolt, and receiver, and installed a 1.8 jet. It’ll run that one now. Not sure how long it’ll run, but I think I’ll try it for a while. FYI, my research has shown the factory cqc size is apparently 2.0.

Let us know how it works, I was going to have pmm chop my barr l and send me back the next to smaller sized inserts to play with.

I had PMM chop mine to 10.5 and it’s on the truck to be delivered back today.

Curious to see what they put in it and sent as extras. Will hit the range this weekend.

I recall reading he sends one size bigger and that the one he puts in there will even run wolf steel case. I'm going to order 1.8, and 1.9 to try out also. I only shoot 556 though so I'll be tuning accordingly.

It’ll run with 5.56 with a 1.8 for sure. Mine runs wolf steel with a 1.8 until it gets filthy. Jarod installs and recommends a 2.0 with 10” chop.

Guess I'll order 1.6 through 1.8 then. Thanks

I had my barrel cut to 11in and I’m using the 120 (1.5 mm) and haven’t had any cycling issues so far.