FX Impact M3 slow first shots (new thread)

[Floridaman2005]

I’ve been doing some searching for a few days about the shot “warm up” that Impacts have on their first 10-20 shots. I wanted to consolidate data and see what the consensus says the solution should be to this issue. I’ve heard all kinds of possible solutions from giving extra hammer to the first handful of shots to disassembly and cleaning the valve rod.

I believe what is happening is valve stiction and am debating disassembly and cleaning and polishing the valve rod, as someone else has fixed their gun by doing this on the forums.

I do not shoot long range and I do not see a difference in POI or accuracy due to this ramp up, so maybe the answer is let it be.

I do not have any reg creep and believe this issue to be something valve rod related. Just wondering if anyone was able to “tune” this out of their gun or if the only real solution is disassembly and cleaning.

Thanks

 

[rc4fun]

It's not at all difficult. There are plenty of videos. Choose one you like and follow along. Check your tool inventory to insure you have everything required. The C1/C52 tool is very handy and a micrometer is needed. Hardened hex drivers will save a few screw heads. Get an oring kit! And some of the recommended valve rod upgraded orings.
https://a.co/d/dWZAOvJ
It didn't completely solve my problem but it has helped.

 

[aussiegav]

FX Australia were told by FX Sweeden to replace the valve pin.
FX Australia has only had 1 so far until I contacted them because my M4 is doing it but they also changed the orings at that plenum end and the problem was solved. They have posted the parts to me today so I can do it myself.