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    Post pics of how you set up your FX Chrono...

    25.4mm pvc pipe for in house water installation, one cheap Ali express picatinny 25,4mm mount and black heat shrink. Easy to put on and off, radar must be placed near shroud end like in the picture. Total cost almost nothing.
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    Anyone upgrade their impact 54cc pp to 72cc pp? I have a question for you.

    Hello, Any new information about upgrade PP to PP720 + power block with just the cheaper kit? On Huma site it is stated: "Does your FX Impact MKI/MKII already have a Power Plenum installed? In this case, purchasing just the 115Eur Power Block kit for FX Impact M3 variant is sufficient"...
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    Fx impact mk2 with dual plenum

    At what pressure is reg set?
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    JSB Exact Jumbo Monster 25.39 grain pellets

    Avoid that pellet if You use ST or STX barrel. Tested in Royale ST, WC STX and Impact old ST 500mm and new STX 700mm pellet and slug liner. Group at 50m is from 40mm and up to 80mm. Not usable. Redesigns, wheel, that is totally different animal...
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    Mix and match power plenum parts question

    Also You can not put old long spring C42 in power plenum and use with rubber ball system for valve control because it will jam 5,5x1,5 o-ring in small tube of a new plenum and hit delrin valve in an angle. O-rings that seals plenum and valve rod are now inserted from the "inside" and there is no...
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    Impact power plenum orings

    20,4x2,62 nbr70 1 pcs 9x1,5 nbr70 2 pcs 2,84x2,62 pur90 1 pcs (white one) 5,5x1,5 nbr70 1 pcs 2,2x1 nbr70 1 pcs 10,5x2 nbr70 4 pcs
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    Announcing the FX Impact MKII w/ FX Power Plenum

    You are welcome, glad we solve this together. For reason why FX USA or distributors have to install power kit I do not have answer. Maybe You can order it from some other than FX USA. I live in Serbia, here we have maybe 5-10 Impacts in total and only two of us do our modding all by our self...
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    Announcing the FX Impact MKII w/ FX Power Plenum

    My friend, Your brand new valve housing became old new housing overnight. In package called "power plenum" You will receive all bits needed to power upgrade Your gun no matter is it Impact 1, Impact 1 ver2, Impact X or Impact mk2. Like I wrote it consists of: brand brand new valve housing...
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    Announcing the FX Impact MKII w/ FX Power Plenum

    No. New power plenum set consists of new valve housing with integrated valve seat, valve rod with valve, hammer, valve control set front part, hammer spring, plenum.
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    Announcing the FX Impact MKII w/ FX Power Plenum

    Yes This:. https://www.krale.shop/en/sport-shooting/power-plenum-kit-fx-impact.html or this: https://www.europeairguns.com/en/repuestos-2/fx-airguns/powerplenumkit
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    Announcing the FX Impact MKII w/ FX Power Plenum

    All rear blocks are the same, don't worry about that. New power plenum can be retrofitted to all Impacts, my is mk1 later edition with reg piston 16mm, old valve housing but seriously modded. I have plenum from Poland, second generation and it works great but ordered last night one power plenum...
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    Fx Impact Fix & Mods for more FPS / FPE

    Update on large plenum from Poland. It is somehow tricky to assemble the gun and what puzzled me was the moment when I have to screw bottle with loose screws on main and rear block, the screws that hold plenum and valve housing, 4mm allen screws. That allowed position of the plenum in right...
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    Fx Impact Fix & Mods for more FPS / FPE

    Nice to see that your plenum is fine. Can You pull out and put back the barrel when plenum and the whole gun is under pressure? Thanks.
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    Fx Impact Fix & Mods for more FPS / FPE

    Lot of work today, have no time to play with gun but took some pictures. One is with pressure 110 bar and the tip of a barrel at point of entrance at the rear block. Second in same position but without pressure in the gun. Third was hard to take, but there is little curvature in long main...
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    Fx Impact Fix & Mods for more FPS / FPE

    There is solution I think. In consultation with Michal, if there is problem with barrel taking in and out, small adapter for valve housing should be sanded 0,1 to 0,3 mm maximum from side to rear block and that will reduce overall length of plenum-valve housing combo. That ONLY if such problem...
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    Fx Impact Fix & Mods for more FPS / FPE

    @ Vadimas, can You take out and insert back barrel with pressure in the gun?
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    Fx Impact Fix & Mods for more FPS / FPE

    Interesting situation here with plenum. After putting everything back on the gun and double checking I screw the bottle. It took almost two seconds to fill big plenum and everything look fine. Then I tried to put barrel in and it would not get into rear block. It was misaligned for about 0,5mm...
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    Fx Impact Fix & Mods for more FPS / FPE

    Arrived today from Poland to Serbia, nice looking plenums, good powder coating, all assembled, ready to put in a rifle. Ok, it needs a little cleaning but that is no biggie.One for me and two for my friends here. BTW, only difference between old and mk2 is in the adapter for valve housing, it...
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    Fx Impact Fix & Mods for more FPS / FPE

    3000+ shots, 6mm OD, cca 2mm thickness, relatively tight fit on valve rod so it does not move from hammer seat and it is the same as when I put it in, no marks, dents, cracks. The head of hammer is 6mm in diameter so it is best to use delrin of the same OD and then there is no way to make...
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    FX Impact probe doesn't retract all the way.

    Totally agree, gun is working and that is most important. What is interesting for me is delrin washer that failed. I have one for 1500+ shots and it did not move. About 2,5mm thick, cut from 6mm rod and drilled hole with 3mm drill bit than little filing and it is tight fit on valve rod. It...