






Diana Regulator for Stormrider & Bandit
PY-A-8938
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Description
Up the consistency of your Diana Stormrider air rifle or Bandit air pistol with this dedicated regulator from Altaros Air Solutions.
Diana Stormrider/Bandit Regulator
- Aftermarket regulator upgrade
- Fits Diana Stormrider PCP air rifle and Diana Bandit PCP air pistol
- Fits Gen1 and Gen2 Stormrider
- Output pressure settings range from 100 BAR (1450 PSI) to 150 BAR (2175 PSI)
- No drilling required
- Includes regulator, mounting rod and O-rings
Tech Tip: When installing this regulator into a Stormrider, the factory pressure gauge will show the regulator pressure. Adding the PY-A-9034 / DIAP-SR-66 fill valve and gauge assembly will allow you to monitor the fill pressure of the rifle once the regulator is installed.
Please Note: The pressure indication scale on the regulators is not always exact. Our technicians check and set the regulators to 130 BAR (verified with a regulator tester) before shipping.

Specifications
Overall Rating
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10 of 23 Diana Regulator for Stormrider & Reviews
Simple installation
Things I Would Have ChangedA way to test before installation. Have it work after installation
What Others Should KnowInstalled according to instructions and you tube video after setting to 130 bar ad the reg gauge equaled tube pressure not reg set pressure. Tried to Remove cap and readjust. Reg gauge showed much lower than set value. Tried a couple more times before trying to remove. Couldnt remove but was Able to get reg gauge back to tube gauge pressure. Waste of money for this And manometer cap. I am sure this is just my case and most installations go fine. I am just voicing my frustration for not getting what I wanted. A regulated Stormrider.
Ease of installation. Results
Things I Would Have ChangedIt's a bit pricey. Should be a $50 upgrade, or even come standard.
What Others Should KnowMine was set to minimum when I received it. I set it to 140 bar and getting 25-30 accurate shots per fill in .22 cal. Bandit. It does what it claims to, tighten up groups without having to use "Kentucky Windage" as pressure drops.
Nice quality, easy install
What Others Should KnowThey do not set and calibrate the pressure as stated in the description. You need to check and set it yourself.
Ease of installation. Consistant air pressure for consistant shots.
Things I Would Have ChangedNothing
Accuracy after the install is amazing
Things I Would Have ChangedPrice should be around $50
What Others Should KnowBe careful installing threads in gun will tear o rings quickly
Easy installation. No modification needed.
Things I Would Have ChangedNothing
What Others Should KnowA must buy for the Diana Bandit. Prior to installation , had over 100 fps spread with just 2 mags or 14 shots. Set regulator at 125 bar and got 3 mags or 21 shots shooting at over 500 fps with Crosman premier pellets. Extreme spread cut down to less than 10 fps. 1/4 " groups at 50 ft . Great for my indoor practice shooting.
Easy installation. Works very well. After I installed it. The gun shot 559 fps for the high down to 534 fps for the low with a 7.9 Gr. Pellet. That's with a 43 shot string. Way better than without the regulator. The regulator was set to about 135 bar.
Things I Would Have ChangedNothing
What Others Should KnowYou lose some pellet speed but gain accuracy.
I installed this regulator in a .177 Diana Storm Rider, set it to 115 Bar. We get 3 full magazines (21) shots and still on the regulator. My wife shot a 1 hole ten shot group yesterday at 25 yards using Crosman premium hollow points. I am very happy with this regulator. If you own or are planning to purchase a Storm rider, dont forget to include one of these. You will not be disappointed.
Things I Would Have ChangedNothing
Easy to install. Levels out the shot string.
Things I Would Have ChangedThe quality. Its cheaply made.
What Others Should KnowI order this from pyramid air and my rifle no longer has enough fps to do anything. I tried turning the regulator up to maximum power and still nothing. Looks like I'll be returning this soon. Next time I'm just gonna get an air venturi avenger.... they look so much easier to adjust.
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Mar 09, 2022
By Dennis
ease of installation in my stormrider gen 2
What Others Should Knowwhat you adjust the bar to does not register the same on the bottom pressure gauge. i also installed the fill pressure gauge at the front of the reservoir which gives an accurate figure. a 125 bar setting on the regulator shows 150 bar on the lower gauge. however the 125 bar setting on the regulator gives 15+ rds from the first to the 15th then she starts dropping down below the 25yd zero. the regulator came with a note stating a 130 bar setting tested at the factory. crossman 14.3 gr pellets are what i use and accuracy is excellent with 5 shot strings.i had to change the o-ring on the regulator already so be sure to lube the ring and threads in the reservoir heavily. the hand pump is beating me to death so i'm gonna buy a plug in pump ( it's a 60 pump stroke starting at 140 bar pressure in the reservoir to get to 200 bar but at 78 yrs it's still a gas). this stormrider is sumthin else!! PIGEONS BEWARE LOL