@OldVet I bought the plenum for the HM1000x only to discover it does not work with the massive shroud/moderator. The RAW web site clearly states in the description that it is for the Laminate Stock rifles. Except down lower on the page it says not for moderated guns.
So, I was out over $100. Then I thought about it while putting in the new orings and wondered if I could use the plenum to shift a Huben Power Dream Universal regulator outside the stock.
So I degassed my Hatsan Bullmaster with the Dream and a 1.1L bottle. Took them off and checked to see if the plenum would screw on. Nope, female to female. But it just so happens I had a batch of custom M18-1.5 male to male adapters made.
Now it all screws together. Mount it on the gun and the Dream is short 1/16th of an inch of clearing the stock. Grab the AirForce bottle shim and *boom* it all screws down.
Crank the adjustment screw a ways in. Start filling the bottle. Figure I'll set it gor 150bar/2175psi. Get to 2500psi and the output is sitting at 2000psi.
So, I turned a heavy gun limited to 0.5L, 250 bar and no plenum into a HEAVY gun with 1.1L bottle, 300bar and 60cc plenum.
The 1.1L is a needed the gun uses a Lot of air. Tried the 1.6L but it is about
It is a super power, able to make Air Rifles⁰ weigh like they are boat anchors
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