Does anyone know why my FX M4 . 22 shoots the first 3 or 4 low-power shots, for example, at 880 fps, and then evens out at 920 fps? I use 18.13 grain JSB. Thanks for your answers.
Does anyone know why my FX M4 . 22 shoots the first 3 or 4 low-power shots, for example, at 880 fps, and then evens out at 920 fps? I use 18.13 grain JSB. Thanks for your answers.
This is the only good fix. I can vouch for Mubhaur.
How does someone get this part of his that you speak of . ThanksThis is the only good fix. I can vouch for Mubhaur.
Im using his part now for over a year and no troubles. No slow shots.
Go to Ebay and look up MUDPRO1 he has all of parts needed. He found the perfect o-rings made diamond polished valve rod and the re-engineered the front of the plenum to perform better. He also has a channel on YoutubeHow does someone get this part of his that you speak of . Thanks
Go to Ebay and look up MUDPRO1 he has all of parts needed. He found the perfect o-rings made diamond polished valve rod and the re-engineered the front of the plenum to perform better. He also has a channel on Youtube. This should help you out.
mudpro1 makes a cnc machined plenum with a thumb screw that is flat vs a nut sticking up the tube is also the correct length mubhaus is .130 longer.In my opinion Mubhaur his part is the perfect replacement.
You dont need a diamond polished valve rod. The part he makes, presses the oring in a 90 degree position so it can't clamp on the valve rod. Just like an mk1 impact had.
Must regulated rifles have that problem.Does anyone know why my FX M4 . 22 shoots the first 3 or 4 low-power shots, for example, at 880 fps, and then evens out at 920 fps? I use 18.13 grain JSB. Thanks for your answers.
mudpro1 makes a cnc machined plenum with a thumb screw that is flat vs a nut sticking up the tube is also the correct length mubhaus is .130 longer.
i know i bought both if you want i have mubhaus plenum on Ebay for sale, like mudpro1 said, not all these guns need them as he is finding other issues like 20-25 bad valve rods that come bent at the crimp causing the little Oring tend to wobble and get wedged into the seat and stick ,,a new valve rod and o rings fixed that one no plenum needed, his valve rods don't need lube is the whole advantage ,its carbide coated then polished on a wet diamond wheel
his plenum has 2 peek bushings inside one on each side that act as a guide and touches no aluminum like the original does.
potato patato one made in USA one made in Pakistan they both work little different in design
mudpro1 also filed for 2 patens for his Orings and Plenum 3 or 4 weeks ago, Huban had contacted him about his plenum people who make regulators
so, he filed for paten.
let me just say this.if valve rods are bent from the factory you should claim warranty.
I never had a bent valve rod from FX. Only thing that I had was the slow shot.
Mubhaur his part is maybe indeed a bit longer, but that doesnt harm the performance.
The flaw with FX is simple, its the oring that clamps on the valve rod, if the oring cannot clamp its solved.
if you want to fix your consistency 100% you will need mudpro1 new Orings you can come up with whatever you decide in my opinion.
that's all folks.
no arguing here i just stated my finds and facts and my opinion that's all,, we all have different outlooks and opinionsIm not going to fight or argue this online, but let me say this.
I have his part now for over a year, I never experienced a slow shot ever again. Not even when stored more then a month due the winter temperatures.
My Impact shoots super consistent, not any problem at all. See picture. Even first shot is dead on.
View attachment 550835
Mudpro1 for sure did his homework, and might be cheaper to buy thats for sure.
Im still not 100% convinced about just changing few orings, as the original part has it flaws. See below
View attachment 550841
Thats true.no arguing here i just stated my finds and facts and my opinion that's all,, we all have different outlooks and opinions
that's what makes the world go round.