Yes that is all. I made it on my lathe. I have been using them for over a year. Nothing new here. Olympic rifles have been using the concept for decades. Browning Rifle co has called it the " Boss" . It seems that now a couple of airgun manufacturers are reintroducing it as the new Holy Grail. RAW and FX so far. It does work. On the very first picture of the thread you'll see one I made for my Tau pcp, right behind the moderator. Works great as well. It's interesting to see how little of a turn of the weight can make your groups enlarge or shrink. Pretty cool. I'm expecting to see more manufacturers to introduce tuners to the market.
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