Guns with Externally Adjustable Regulators?

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JungleShooter

JungleShooter

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Sep 5, 2018
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 ⭐ Externally Adjustable Regulator ⭐


OK, I admit, that's 17 syllables, but..... is it really that hard to produce?!




🔹For example, with current .22 projectiles ranging from 12 to 40 grain (thank you, H&N!) — it seems like we would want to adjust our regulators frequently — without having to dig deep into the organs of our PCPs, each and every dang time. 😖



🔹 But as I was writing out my Christmas wish list (yeah, I start early), I made the discovery that guns that I had admired in the past (but that were out of reach pricewise) do not have that option....! 😖



🔹 Imagine my surprise when I realized that they cost about as much as an FX gun — that DOES have an externally adjustable regulator. 😱





🔸 I would like to see quality guns like Brocock, AGT, EDgun, Ataman, Kalibrgun, and Taipan giving me that option. Especially at their high price!

But they require me to degass the gun, take the stock off, and take wrenches to my gun's vitals — every time I want to adjust the reg for a new projectile, or for testing a new muzzle velocity....



I might have missed a few models, so help me out with sub $2000 guns that have externally adjustable regulators.

(O yeah, the PP700 does, but I'm a born looser both in the barrel lottery and the regulator poker, so no, I'm not looking for china or turkey — I already have plenty of dishes, and thanksgiving is still months away).

Matthias







🤔 Really.... how hard can it be to make guns with externally adjustable regulators...?


 
I will not buy any gun that I can not adjust the Regulator from the exterior (outside)

Yes I own Crickets,Veterans,Mutants, and vulcans .. But I bought a Prophet and that has been a gun that is so easy to tune up and down, NEVER I said NEVER will I buy another internal regulator gun,,, Yes the RTI Prophet has been a game changer for me..

Mike
 
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When you truly understand how simple a regulator appears to & actually functions, Then grasp how a set point change of operating pressure can be made ? Know that seat to seat rotation CAN NOT happen under pressure leaving spring stack preload the obvious design choice .... then have end user able to and willing too do said adjustments correctly without screwing stuff up and then bring a design to the Exterior of said PCP without a LOT of engineering and design layout, There you are !!!!



These designs are out there, success and user fumble free application sketchy at best.




 
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You mentioned Turkey, and one reason I went with my choice of gun WAS that it had an easily accessible externally adjustable reg*.

The gun that I wanted for some time but never bought was Eds R5m, reason?, Lack of easy adjustment.



Note, I want/need a gun I can tune down to low power for safety reasons, and up for long range, two guns not an option.


 
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🤔 Really…. how hard can it be to make guns with externally adjustable regulators…? Hard. Working on 2 different designs for 2 paying customers.



Externally adjustable guns that I know:

Huben K1 - easy and great reg, probably best on this list (up to 5000 psi input with consistent output). 

LCS Sk19 - easy, medium to crappy reg - big output pressure variation with input pressure variation (hardest part of regulators is keeping output pressure consistent with input pressure variation WHILE minimizing size). 

Edgun leshiy 2 - easy and great design reg. REPR is improved as far as assembly and safety compared to my prior experience with this design in other applications.

I'm sure there are others. Yes, it's difficult to design an adjustable reg of the design that most airguns use. 

You can increase pressure but if you decrease pressure while it's gassed up you will crush the reg seat (Huma, Altaros, Robert Lane, FX - all similar designs) That's probably why they don't have external adjustment. 

I get paid to design regulators, everything from paintball to aerospace to 10 cm of water (yes that's a pressure measurement) low pressure for premature baby air supply. Yes externally adjustable on a design that is consistent, responsive, and can handle dirty air is difficult in the range of consistency at high pressure that Airguns require. If it was an industrial regulator +/-3% output variation, with consistent input pressure, no size constraints, and clean air it would be easy. 

Hope you find what you are looking for, I own the 3 guns I listed and like them very much, each for its own purpose. I've owned other airguns but none had externally adjustable regulators. Most of my paintball guns had externally adjustable regulators but none had output past 800 psi. 

Cheers,

Sergey












 
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I don't own a rifle with an externally adjustable reg, but the concept is appealing. I get the impression, from more knowledgeable folks, that designing and implementing a good externally adjustable system is not extremely easy. I have tuned several rifles, and yes, removing and reinstalling the reg several times is a bit of a chore. But, once done, I've had no need to redo them. If I frequently made significant tuning changes, the external adjustment would be nice. But for my use, avoiding the additional complication might be the better path. Even the simplest PCP designs are not the most dependable things in the world, so I might be better off keeping it as simple as possible.
 
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Most airgunners don't need externally adjustable regulators. From what I hear, most people who have them tune them wrong, leading to lots of accuracy issues and customer complaints.

Manufactures spend incredible amounts of time tuning for various ammunition and weather conditions across a range of input pressures. Tuning for just one pellet type across a range of tank pressures requires a radar unit and high-speed camera, and a lot of time in a controlled shooting environment. (Without knowing how the speed is affected, and without seeing how the spin is affected over the entire flight path, it's all guesswork.)

If you're not sorting pellets, barrel harmonics isn't even a consideration (which, in my opinion, should be the focus of regulator adjustment).
 
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The Avengers have an adjustable regulator. While not the world's best reg, for a gun costing $300 hard to say others couldn't figure it out.

If one doesnt have a bunch of guns having one with an adjustable reg is definitely handy. I have one nice PCP now and an Avenger. My RTI Prophet Compact has an adjustable reg and find it really easy to deal with. Both my guns I can tune in a matter of a few minutes to whatever speed I can what with whatever projectile. It's hard to go back. If you have a couple different guns dedicated to specific things then no need.
 
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Most airgunners don't need externally adjustable regulators. From what I hear, most people who have them tune them wrong, leading to lots of accuracy issues and customer complaints.

Manufactures spend incredible amounts of time tuning for various ammunition and weather conditions across a range of input pressures. Tuning for just one pellet type across a range of tank pressures requires a radar unit and high-speed camera, and a lot of time in a controlled shooting environment. (Without knowing how the speed is affected, and without seeing how the spin is affected over the entire flight path, it's all guesswork.)

If you're not sorting pellets, barrel harmonics isn't even a consideration (which, in my opinion, should be the focus of regulator adjustment).
Click to expand...

Your not wrong to be sure!

That said, even as someone in the category you describe, (don't need an external regulator, happy to leave well enough alone on most of my rifles) I read these forums and see a few things;

- If you made it to this forum, you are just as likely to NOT be in the category you describe.

- The most talked about rifles bar none, (FX) DO have this feature.

- Even an amateur like myself wants to experiment and experience some of the advantages that the FX shooter are always talking about. I'm doing just that with my LCS.



So yes, you are correct, the majority of PCP buyers may not, but that should not mean that there isn't also a market for those that do like Jungle shooter and many many others.



p.s. The only regulated gun I own has an externally adjustable regulator, and i am such a newb, that I didn't realize that this was not how ALL regulated guns work. I've been considering retrofitting one or two of my other PCPs with a regulator, but this discussion means i won't bother.
 
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Most people don't adjust regulator at all. If you don't fully understand the implications of regulator pressure then you might adjust to a tune that's not good. But for those who likes to tinker not having external adjustable regulator is simply PIA. I adjusted mine A LOT but lately I'm have not really changed my external regulators much because I'm finally settling on barrel length, ammos and power I want to shoot with each guns. But the journey to my current tunes took a while and hundreds reg adjustments. Personally I also would not buy a gun without external adjustment but that's just me. 
 
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I just purchased a HUMA Regulator (Bottle version) for my AEA HP Carbine .30 Cal. (Assassin) from HUMA.

I'm trying to obtain the sweet spot between MAX power (about 740 FPS w/ 46g pellets) and a steady flow of shot velocity per round. I'm not so concerned with shot count as with steady MAX power FPS per round. Wondering what the BAR setting for the regulator should be (e.g. 130, 150, etc.)

Does anyone here have any experience with this kind of setup?
 
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