Introducing a Hajimoto Productions Exclusive offer!

22ci/360cc/.36L Aluminum Tank 3000PSI
Newly redesigned unit
Now has a high pressure and low pressure burst discs!

Flex 22 Configuration For Generation 1 Gauntlet .177/.22 Cal
Stock .177/.22 | 3000/1100PSI Regulator
Flex 22 .177/.22 |3000/700 to 1500PSI
Flex 22 Configuration For Generation 1 Gauntlet .25 Cal
Stock .25 | 3000/1900PSI Regulator
Flex 22 .25 | 3000/1500 to 2300PSI
If you are looking to add an externally adjustable reg to your Gauntlet 2, take a look at swapping your current fixed reg to the Flex reg found HERE
Installs on the Gauntlet with minor tank shroud modifications. (The Gauntlet 2 is shown to give an idea of what modification needs to happen and that is simply a hole drilled in the bottom of the plastic tank shroud for the fill nipple.

A 22ci aluminum 3000PSI cylinder with externally adjustable Ninja Flex Reg for your Umarex Gauntlet1! The volume of air in these 22ci tanks over the 13ci is mind-blowing!
The diameter of the tank is 54-55mm across so a modification to the forearm is required on a Gauntlet 1. I do offer a tank shroud modification service for Gauntlet 1 owners that can be added to a build or provided as a mail-in service.
The Gauntlet 2 forearm slide right over without any issue. Only one access hole needs to be drilled so the fill port is accessible at the bottom.
Consider picking up our extended foster fill adapter to make coupling and filling a breeze.
The Power Flex Combo allows the user to externally adjust the regulator output pressure on the fly with an adjustment range of 800PSI!
When installing the Flex 22 on the Umarex Gauntlet. Tighten the degassed tank and regulator assembly fully to the rifle, then back it off until the fill port is on the bottom and the gauges are left and right. Now fill the bottle with air and all will tighten up solid. Proper alignment will be achieved before the 360° maximum rotation limit is realized.
Comes with a dedicated Spanner Wrench for power adjustment. MADE IN THE USA!
Because of practical limitations, regulator output will be +/- 50PSI (3.5bar) within the requested output.
skyking964 (verified owner) –
I have the Ronin which I use on my Airacuda Max in 25 caliber and 22 caliber. Hajimoto recommended that I get the product that is designated “25/30“, and I did so. I shoot every day in my backyard, so I needed something, that would moderate the report in consideration of my neighbors. Hajimoto‘s customer service is superb. I have also use the Ronin on my 22 and 25 caliber Stoeger, XM,1 Bullshark with excellent results.
alarmclok –
Had been looking at these for months. Should I shouldn’t I, would I wouldn’t I? Finally did. Love it. I’m using medium height scope rings on the Gauntlet SL2 .30 cal and I can just see the top of the moderator in my sight picture. Doesn’t seem to affect anything. I’m trying to think if moving the scope closer to my eye or further away would make it less visible. Not that I’m gonna bother.
It’s quiet. The pellet hitting the tree stump louder than the blast. And it looks awesome. I never thought I’d be one of those people decorating a gun but here I am. I blame video games. I’m pretty sure I’ll be getting the Ronin Extender soon. Why? I have no idea. See how much quieter it can get I guess. And to make it longer because my gauntlet isn’t long enough. If 6 inches makes it look cooler 12 inches will be twice as cool. It’s just math really and you can argue with math but you’ll never win.
Hajimoto –
We are happy to hear that the Ronin is working well for you. If you have not considered it yet please think about the amount of weight that you are added to the end of your barrel and how easily the barrel is influenced. If you have not added one of our barrel supports yet, you should so that your point of impact is less likely to shift with any contact to the barrel. Just select the Gauntlet Model, Caliber, Tank Size, and The Pic Rail variant, and you are done. https://hajimotoproductions.com/product/hp-barrel-band/