FX IMPACT M4: 1st Stage Regulator Install: Is It Worth It? | FX Impact M4 Series pt. 4

[@SOAP-X]

Hello fellow shooter, thank you very much for passing on this information. I have been confused lately with my regulator for regulating well with a pressure of 200 bar from the bottle to 145 bar in the Plenum. Every time I put 240 bar in the 350cc bottle, the regulator suffered a lot and fired few shots constantly until it ran dry at 190 bar from the bottle. My regulator has 13 very thin plate springs that are quite sensitive to high pressure in the bottle. I will add another regulator and make a larger Plenum to use 110 bar with 90cc of Plenum. I will use thicker plate springs in the first regulator to work with more resistance and the second regulator with the standard springs. I use .177 pellet 13 grain. Greetings from Brazil 🇧🇷.

[@michaelmcbride1307]

Hey Peter, just treated myself to 2 FX rifles, the Sabre Dreamline and the Maverick. I absolutely love them and how easy they are to work on. Great channel and keep up Nerd Mode 🤓

[@jwulau]

Excellent Video Peter!!! I am following you from Perú!!!! Absolutely 1 or 2 regs depend on your objectives for hunting, hitting a Coin is more than enough, so 1 reg is ok even if you are shooting .177 or low power, low pressure setting, but if you pursue precision in a coin range you have 5 point of difference in a competition, so the 2 reg it's a must.

[@VikingAirgunner]

I have shot some really good groups without the 1st reg, but the consistancy has improved after the install for me. But anyway you know me - measuring and caring (perhaps too much 😛) about millimeters improvements in group size 😂 I hear you loud and clear. A coin size group will do, but since I am not allowed to hunt here in Denmark I only have the accuracy to focus on. It might have been a different focus if I had been hunting 🙂 Thanks for sharing your thoughts buddy 🤗 Have a great weekend 😎

[@recklessjunkie]

More of these nerdy explanations please I enjoy them and I’m sure that’s why others watch your videos and can say the same

[@VikingAirgunner]

Thanks buddy 🙂 I have been focusing on regulators, springs and stacking for a while now and I felt my understanding was now on a level to pass it on here on my channel 🙂 I wish that I had this knowledge One year ago, so I figured that it would be well recieved by those who actually saw the whole video 😃

[@bongyakwui]

Hi Peter, Thank you for your efforts in testing the first stage regulator. I would like to confirm my understanding that the primary advantage of utilizing the first stage regulator is to ensure stable pressure, as well as to facilitate the use of a 300 Bar cylinder, which allows for an increased volume of air and consequently, more shots.

[@VikingAirgunner]

That is a good way to summarize it 🙂👍

[@Wakemeup99]

As usual, informative content and good quality. Thank you for decency !

[@kabunyaninlagud5134]

Thank you Peter for your response..

[@iantcroft]

Thank you for the video, great test. I agree, having 2 regs can only be a good thing with consistency. That’s a good test with adjusting the front valve to make first shot speed more consistent from the get go. I find my gun needs a few shots to settle. I have put thousands of pellets and later, slugs through my gun with very little maintenance. As it was very accurate I didn’t want to upset that by stripping it. I have now been experiencing some oddities with the first reg pressure, not sure if it’s an issue with the gauge or the regulator. I must get the courage to remove and strip both regulators to clean and replace orings to hopefully fix it. It still shoots very accurately despite the oddity which is why it hasn’t been stripped already! I will have to recap on some of your videos on the regulator maintenance to refresh my memory!

[@VikingAirgunner]

I wish that I could claim havin invented this method of tuning, but I found out about it from Steve at AEAC here on KZbin as he interviewed a bunch of pro shooters. I had no idea about it, but after trying I never looked back 😃

[@amink9436]

Great video 👍🏻there is something I suggest you to consider, if you clean the barrel after every session, the slowly increasing velocity is normal,its about the bore condition, its about seasoning the barrel

[@VikingAirgunner]

Thanks man 🙂 I clean my barrels very rarely. Usually when the accuracy starts to lack. So far the 1st reg has solved the issues that have had🤗

[@peashooter950]

@@VikingAirgunner Shooting my Two Friday, starting wit a clean barrel, i noticed about 350 shots in ( 13 gr zan ) my deviation started to go from a little in 1 direction to a little more in 2-3 directions. So i cleaned my barrel, put on the night scope and waited for the rats that never came.

[@chrisfigueroa3361]

Awesome video peter I still use the first stage reg but I have mine set to 200 bar and my sec reg to 170 bar and I shoot 34 gr slugs at 1000 fps with my fx m3 22 cal 700mm ever since I've got it it's been like that I've had it for over 2 yrs now I believe and I've had to replace the first reg twice because of bad leaks through the breathing hole it's a very accurate gun and constant it's my slug gun the fx mk2 25 cal 700 mm is my pellet gun and it has the upgrade power plenum 72 anyway I really enjoy your videos peter keep them coming thanks be safe buddy 💯

[@VikingAirgunner]

That is good info for all to read 🤗 Sometimes it almost feels like a religion if people are using the 1st stage reg or not, so having an example like yours is valueable 😎 Thanks for sharing 🤗

[@chrisfigueroa3361]

@@VikingAirgunner yes sir thank you buddy 💯

[@muhammadullahchowdhury9296]

Same here. Leak issues become minimal.

[@ericlindholm7510]

Thank you sir. As always, informative & interesting. I was wondering why FX went back to a single reg with the M4. Seemed to me it was the way to go. I'm still learning about pcp's so maybe I'm wrong or it's case of what you need the rifle to do that dictates your reg needs. Thank you again, looking forward to next vid.👍

[@VikingAirgunner]

Fx has made changes to the all the models of Impacts along the way. Perhaps they will mount the 1st stage reg on 177 down the line. I think that it deserves it. The experience of the gun has defenately improved after this install 🙂

[@JohnHowerton223]

Hey Peter, you can run your front pic rails still if you want with the tensioner, just not with the stock shroud. Just use only the back holes. I'll send you a couple photos.

[@VikingAirgunner]

Interesting 🤗😃 Thanks buddy 🙂

[@jeffojibway9284]

I love my fx airguns however I pull all the fx regulators and install Huma regs even my mk2 has two regs, I never notice creep with the Huma regs. Excellent video!!

[@sebastiang6410]

Problem with huma is that it drops 3-4 bar in regulator pressure when reservoir goes down from 250-150b. Therefor the added bottle regulator is good. Then the regulator sees no drop from reservoir

[@PhilipMcDonough-rw8hn]

Hi Peter,again another great video,very informative and interesting it seems to me that the Mk3 impact with the two regs is a better gun however,you now have a lovely looking Mk 4 impact in the copper colour but set up as a mk 3 .....to me that's the best of both worlds most enjoyable to watch your videos along with your expertise with FX rifles,I look forward to seeing your next offering,kind regards,Phil

[@VikingAirgunner]

Hey Phil I believe that fx has made a mistanke by not giving the M4 the 1st reg. Untill I installed it the M3 was still the winner in consistancy and tuneability. Now I have to take a little time with the new setup to get to know it. I imagine they will be very much alike - but with my curiousity and this channel I just had to have the M4 🙂 Still excited how it will evolve over the next couple of years 😃😎 Have a great weekend buddy 😎

[@armandoespinoza1359]

Gran trabajo,muy util su video felicidades

[@preyingmathis2517]

I have found with the M4 that it when I make changes to the tune it really takes alot more shots than you would think for it to actually settle in to the settings. For me its been like a full mag or a little more for it to settle in. And I still cant get rid of the low and slow problem, even using the tuning technique you use by using the valve to decrease that last little bit of velocity.

[@VikingAirgunner]

Did you install a 1st reg? In my experience it helped quite alot 🙂

[@preyingmathis2517]

​@VikingAirgunner No sir, I just got it a couple weeks ago and haven't considered installing the 1st reg lol It is a M4 compact .22 and Im running 21gr pellets so Im pretty high on the power.... I have an M3 .30 cal sniper that I actually deleted the 1st reg on 😂😂😂

[@preyingmathis2517]

​@@VikingAirgunnersomething else I noticed on my M4 that makes me wonder if mine may have some underlying issue, is I don't see a velocity decrease when turning in the valve until I get right at line 3. The first couple 8th and quarter turns in from line 4 actually bumped the velocity up a little bit

[@VikingAirgunner]

@@preyingmathis2517 I have my front valve quite far in aswell - to the extend where I was surprised 😃 But it does what it is supposed to 😎 I have heard a few people having little or no effect using my tuning method - but it just might work better with a 1st stage reg 😜 No seriously... It started working better for me after installing 😇

[@preyingmathis2517]

​@VikingAirgunner Thank you sir, I just may put one on it. I'm going to spend the day with it tomorrow and try to get it dialed in better.

[@artknox2836]

instead of 4 hrs , can you do over night to see what it does. like you did the first time, good video. thanks I'm new to FX air rilfes I have a m3 and m4 love them both for hunting. Im going to try this on both my air rifles

[@davorbrajkovic2128]

Thanks Peter🙏🏼

[@kabunyaninlagud5134]

hi Peter, of what i understand from your beautiful informative video, you mean than if we shoot at mid low power like the 2nd stage regulateur pressure is at 110-130 bar its better to have a first stage regulator at 170-200 bar... If we shoot at high pressure like the 2nd stage reg is at 140 higher the first stage regulator is not necessary. Thanks in advance

[@VikingAirgunner]

I havent shot with the reg at such high reg preasures, but the theory is that it makes better sense when you are using low reg preasure. I actually think that sub 12 models comes with the 1st stage reg as standard. Diffenence between 1st and 2nd shot be at least 35-40 bar. Just that it fills the plenum fast - or for me 5-6 sec is fine. This low difference makes the reg more precise if you have the right spring configuration 🤓

[@kabunyaninlagud5134]

@@VikingAirgunner hi Peter, thank you for your respond. it's clearer for me. if may i ask, did you use the First Regulator Bypass Saber Tactical FX Impact? Thanks again in advance.

[@OriginalThisAndThat]

My understanding is that they removed 1st reg for faster action for slugging, and gun will work fine like that.

[@emmerichweinlich1057]

Had the first shots low problem too on my M3. Changed 2nd Reg to Huma Gen3 Reg and problem solved. Constant speed from first shot, though valve is still full out. With less changes the M3 is the better M4

[@VikingAirgunner]

Wich spring configuration do you have?

[@emmerichweinlich1057]

@@VikingAirgunnerHammer Spring: Original FX, Valve Spring: HUMA FX Impact Power Tuning Valve Return Spring

[@VikingAirgunner]

@@emmerichweinlich1057 Springs in the regulator?

[@emmerichweinlich1057]

@@VikingAirgunner This is my 5.5 M3 for shooting pellets: Gen 3 regulator, Low pressure range,10 single stacked springs (G3/0,5), 1st: 150, 2nd: 75

[@aleksandrszukausks6667]

Hi Peter. Can you inform about parts. I'm also think about installation 1 reg, but I,m didn't idea what I need to buy. Like some piston,spring,rings,gouge and something else? Can you help with that? Mayb huma or others get some specifical kit for it? Like slug power kit,full complect in one package. Thank you for answer

[@sebastiang6410]

Problem with huma (and AMP) is that it drops 3-4 bar in regulator pressure when reservoir goes down from 250-150b. Therefor the added bottle regulator is good. Then the regulator sees no drop from reservoir and will not drop in bar when reservoir pressure goes down

[@shahriar907]

The dual regulator works well. There is an issue with air leakage in the M3's first reg. extremely upsetting

[@VikingAirgunner]

Doesnt sound good! Have you serviced it? There are some videos out there on how to do it 🙂

[@shahriar907]

@@VikingAirgunner Yes, I also work as a gunsmith and a seller. I fix a lot of PCPs, but fx Impact M3 the most.

[@JohnHowerton223]

8:30 so are you saying tune the valve back (after it stabilizes) to the slow 1st shot's velocity? Because that kind of makes sense and now I'm pissed that I didn't think of it 😂

[@VikingAirgunner]

It makes the gun more consistant. Saw an interview with different pro shooters and they all use this method 🤓 Even from an unnamed key employee at fx also 🙂 Wish I could claim havin invented this method, but to be honest Im not that clever 😃😂

[@JohnHowerton223]

@@VikingAirgunner the valve is a pretty amazing tool. I guess I just thought that it would buffer every shot... not really thinking that it only slows down the stem if it's pushing all the way through the valve. But with the higher pressure it self buffers that first shot, then the valve buffer does the rest. I knew it would, just never quite made that first shot connection.

[@JohnHowerton223]

@@VikingAirgunner I'm happy about it and kind of pissed at the same time 🤣 I really should have put that thought together sooner.

[@JohnHowerton223]

I got a HUMA reg yesterday. I think I got a bad one. I took it in and out of the gun three times and couldn't get it to work. Couldn't get the gun to fill with air 🤷‍♂️ put the stock one back in couple times and it worked perfectly. Measured all the parts to see if they got packaged wrong or something and they all checked out. I don't think HUMA works on the weekend so I haven't heard back from them.

[@VikingAirgunner]

@@JohnHowerton223 The Huma reg usually does a good job, so it should have performed well.

[@precision_Air]

12:38 This is what im here for.

[@VikingAirgunner]

Thanks for appreciating 🤗

[@Funny-bf8xf]

this is interesting. I have M3's that have 300bar bottles with 2 regs. been shooting them for 3 years that way with no creep loves them. I have a couple M'4's I left them both with the 250 bar bottles. Both are .25. I eft one stock reg setting. 600mm .25 it came set at 100bar. it has zero creep like you're talking about. now the other M4 I've actually had to send it back because it leaks like a loose hooker. love the vid though.

[@VikingAirgunner]

My dual bottle adapter will return very soon with the 300 bar bottles 😎 Absolutely love that setup! There has been problems with the first guns when new Impacts has emerged, so it is a bit of a gamble if you want it right after it has been announced😃 But usually they are fast to fix whatever issues they might have. Mine had a small leak from a blind plug, but that was fixed before I recieved it 🤗 After that the gun has been great - apart from that missing 1st stage reg 😂

[@Funny-bf8xf]

@@VikingAirgunner if you don't mind me asking and I might have missed it in the video. Where did you get your first stage reg. If I start noticing it on mine, i'd like to get one, if needed. Thank you..

[@VikingAirgunner]

@@Funny-bf8xf its available in different places but since I payed myself I dont want to advertice 😃

[@Funny-bf8xf]

@@VikingAirgunner The one that's on your gun looks like the M3 regulator. I can tell it's not the Huma one. The Huma regulator is the only one I can find online. I've never liked how it looks and how it extends the length. I can't find a new M3 first stage Regulator anywhere online. That's why I was asking.

[@VikingAirgunner]

@@Funny-bf8xf write my on FB 🙂

[@ssgoku1983]

Can we get a link on where to get it if we want to buy the regulator

[@VikingAirgunner]

If I had been sponsored I would share.

[@martin60688]

Hej Peter tak for en go info jeg kan ta med vidre😊

[@VôDanh-x9q]

Personally, I find 2 pressure regulators necessary because it will be the most stable

[@VikingAirgunner]

Exactly 😎

[@Funny-bf8xf]

this hasn't been my experience with the M4.. yet.

[@starlightHT]

Personally, I think it's just a few more orings that will leak one day.... I'd rather upgrade to a Huma regulator. On the original regulator (FX) it increased by +-5 Bar and with the Huma I never saw 1 bar of difference even if it was months without touching the Wildcat.

[@VikingAirgunner]

Did you watch my entire explanaition about springs and stacking?

[@starlightHT]

@@VikingAirgunner You know the video was a little long, but I watched it until the end, I just watched it now.👍 I was actually surprised that it took almost 5 seconds to recover, on my PCPS the recovery is instantaneous (+-1 second)

[@peashooter950]

BTW did you see Rick shooting .177 M4 ?

[@VikingAirgunner]

I still have a pack of 20 gr Zan for you 🙂

[@peashooter950]

@@VikingAirgunner I know but still very focussed on light weight, shooting 10 and 13 grain at the moment. Amd i have given up on converting my Maverick to heavy shooter, it will be my rat smacker gun with the Oneleaf NV500 scope

[@VikingAirgunner]

@@peashooter950 I got both 10 and 13 gr ZAN that you can get instead if interested?

[@peashooter950]

@@VikingAirgunner 10gr zan dont work well for me, but 10 JSB KO MK3 is excellent. it is those i indend to setup the Maverick with. Got 4 tins now will have 7 soon 🙂 13 grain zan also work just fine in any rifle of mine Got a order of pellets + a few KO MK3 stuck in customs for over 2 weeks now, Apparently 4.5 mm pellets are now illegal to import or so someone think, i can get 0 info from UPS or customs on my parcel they do admit they have.

[@VikingAirgunner]

@@peashooter950 13 gr ZAN are ready if you want them 🙂 I dont think import laws has changed. I get them no problems 😇

[@johnrambo1349]

1st reg is only needed if you shoot lower power. Or if you want to use 300 bar bottle. If you shooting slugs or high-power, 1st reg is not needed.

[@VikingAirgunner]

As mentioned in the video 😃

[@bommert3816]

Depends what you mean by low power. My M3 and M4 shoot the 18 grain JSBs the same at a 80 bar setting.

[@randylingenfelter2355]

Nice vidip ..what can caliber are you shooting .

[@VikingAirgunner]

@@randylingenfelter2355 Always 177 🤗

[@ansarishafeeque4588]

Can huma regulator be fitted on impact m4 bottle .

[@VikingAirgunner]

Their 1st stage reg? If so, yes it will 🙂

[@airriflehunter87]

I’m not a fan of two regs at all on FAC rated impacts . They are more suited definitely for sub 12 where less air is needed and a big differential between the two regs. I swapped mine out many moons ago with the saber tactical delete the reg. faster replen times more consistent and no sticking of the first reg. The idea I like unfortunately it just doesn’t work as intended . The air has to go through such a small space too firstly which doesn’t help.

[@VikingAirgunner]

Aslong the gun is consistant. A fill time of 5-6 sec is good enough for me🙂

[@airriflehunter87]

@@VikingAirgunner I found the gun more consistent without the first reg. I don’t have much good to say on that first regulator 😂

[@VikingAirgunner]

@@airriflehunter87 we should get together and do a tunaplooza some day 😂😂

[@airriflehunter87]

@@VikingAirgunner I would love to buddy be great to meet you 😆

[@VikingAirgunner]

@@airriflehunter87 It would be interesting 😃 In case somebody is interested in sponsoring this we will make it happen 😃

[@helgef.johannesen4540]

Det gav faktisk rigtig god mening 👍 "nørd--delen" vedr reg. (Det her med de forskellige tykkelser af fjedre).

[@kevintravis2154]

6 bar creep is nothing. To prove your point. You have to show it as factory set. Then do the first regulator test Fx took it out because it causes more problems than it solves. Inconclusive test so leave it out and shoot the M4 as it came.

[@muhammadullahchowdhury9296]

My leak issues has gone to hell after 1st Reg deleted from my M3. I won't install that again.

[@VikingAirgunner]

Where did your gun leak from?

[@muhammadullahchowdhury9296]

@@VikingAirgunner breathing hole and bottle adaptor joint. I need to replace those o-ring often.

[@VikingAirgunner]

@@muhammadullahchowdhury9296 very strange that you have to keep doing it. Have you shared this with the dealer?

[@muhammadullahchowdhury9296]

​Unfortunately there are not any FX airgun dealers in Bangladesh. We have to buy an airgun 5 times higher than the actual price in our country. The media thinks airguns as firearms and laws' personnel often arrest us for using airguns😊. ​@@VikingAirgunner

[@ansarishafeeque4588]

1st regulator on fx impact m3 has multiple leaking issue from breathing hole. As small o ring siz 4x1.5. Very fragile to get worn out. Huma has made best alternative. Every m3 came to my notice has the same issue. It is a flop design .

[@VikingAirgunner]

I have never had an issue with the 1st stage reg on my M3.