Regulator, Tanks & Parts - Hajimoto Productions LLC

$200.00
370cc/.37L CE 5/8″ Threaded
22.5ci Carbon Fiber 4500PSI Tank
$200.00
Introducing a Hajimoto Productions Exclusive offer!
- Shaves a pound of weight off your G2 or G30.
- 22.5ci/370cc/.37L CE Certified CF Tank.
- 5/8”-18UNF Threaded so Stock Gauntlet Regulators will thread directly to this bottle.
  
  Installs on the Gauntlet 2 with minor tank shroud modifications, forearm slides right over the carbon fiber cylinder.
The CF Tank is CE Certified and made to ISO 11119-3 standard. They have seamless aluminum alloy 6061 liner wound with high strength Japan-imported carbon fiber and glass fiber reinforced plastic full composite layers and subjected to an autofrettage pressure. This is a 22.5ci / 370cc carbon fiber 4500psi max fill cylinder.

The diameter of the tank is 54-55mm across so a modification to the forearm is required on a Gauntlet 1. I offer a tank shroud modification service for Gauntlet 1 owners that can be added to a build or provided as a mail-in service.

Please be careful if you have accessories on any of the M-Lok openings as the screws or MLok fasteners may protrude into the tank area and scratch the tank when the shroud is slid forward or back. We recommend that if you have any MLok accessories installed, you remove them when sliding the shroud on or off. We also recommend covering the brass inserts in the tank shroud with cloth tape to protect your carbon fiber finish.
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$205.00
Hajimoto Flex Reg on 22ci Aluminum 3K for the G1
Gauntlet Flex Reg with 22ci Tank – Hajimoto Configurations
$205.00

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.

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Sale!
Original price was: $260.00.Current price is: $220.00.
0.5L/500cc CE Certified CF Tank
0.50L Carbon Fiber Tank 4500PSI
Original price was: $260.00.Current price is: $220.00.

Half a liter of air, right here!

0.5L/500cc CE Certified CF Tank
Perfect fit for your custom build.

M18x1.5 Threaded

This is the same bottle we use on the TacVenger builds we offer.

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$249.99 – $309.99
300cc, 580cc or 700cc Bottles
Air Marksman Carbon Fiber Tanks
$249.99 – $309.99
- M18x1.5 neck thread.
- 300cc (.3 Liter), 580cc (.58 Liter), or 700cc (.7 Liter)
- 300 bar fill pressure (4351 PSI)
- Bottle only no regulator or adapters included.
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$274.00
4.5K PSI Ninja Reg on a 18ci/295cc/.29L CE Certified CF Tank
Ninja Reg on 18ci Carbon Fiber Bottle
$274.00

Direct replacement with no modifications required for the Umarex Gauntlet 2 & G30/G30SL!
18ci/295cc/.29L 4500 PSI Carbon Fiber Bottle

Hajimoto is bringing sexy back! Doesn’t that carbon fiber look awesome on there!

Includes Ninja’s HP regulator.
The CF Tank is CE Certified made to ISO 11119-3 standard. They have seamless aluminum alloy 6061 liner wound with high strength Japan-imported carbon fiber and glass fiber reinforced plastic full composite layers and subjected to an autofrettage pressure. This 4500 PSI carbon fiber bottle is 18ci and is absolutely gorgeous on the Gauntlet 1 or Gauntlet 2.

The Gauntlet 1 will need to increase its tank shroud inside diameter to allow the foregrip/tank cover to side over this carbon fiber tank.

Operating Pressure Recommendations

Gauntlet 1:
.177/.22 Stock operating pressure 1100PSI Max Recommended pressure is 1400PSI.
.25 Caliber Stock operating pressure 1900PSI Max Recommended pressure is 2100PSI.

Gauntlet 2:
.22 Stock operating pressure 1900PSI Max Recommended pressure is 2100PSI.
.25 Caliber Stock operating pressure 2100PSI Max Recommended pressure is 2300PSI.

Gauntlet 30/30SL:
Stock operating pressure 2800PSI Max Recommended pressure is 3100PSI.

NINJA REGULATORS ARE MADE IN THE USA!

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Sale!
$275.00 – $305.00
Huben Power Dream-Notos TK with 0.30L or 0.36L CF Tank
Haji-Notos Power Plant Combo
$275.00 – $305.00
Genuine Huben Power Dream-Notos TK mounted on a.30L (300cc) or 0.36L (360CC)

A complete Haji-Notos Power Plant Combo. It allows for precise power adjustment allowing the Notos to deliver only the power required for the situation. If you want to shoot pest birds in a barn or feed house, you can dial it back to fly pellets as low as 400 ft/s, or if you are hunting grey squirrels and want to deliver a JSB Hades 15.89 gr at over 750 ft/s you can do that too.

FEATURES
- Includes 0.30L or 0.36L 4500psi Carbon Fiber Bottle in Gloss or Matte Black.
- Extremely stable externally adjustable regulator Output 500psi~3600psi
- Provides over 130 shots.
- Ultra-stable output pressure
- Power Plenum with rotatable joint for perfect clocking, locked in place with set screws.
- Standard 8mm quick disconnect male foster fitting adapter for filling.
- Built-in Picatinny Rail Section for Bipod or Tripod Shooting.
- Power Increase on the fly but decrease requires degassing the plenum.
See details below
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Sale!
Original price was: $390.00.Current price is: $280.00.
0.7L/700cc CE Certified CF Tank
0.70L Carbon Fiber Tank 4500PSI
Original price was: $390.00.Current price is: $280.00.

0.7L/700cc CE Certified CF Tank
Perfect fit for your custom build.

M18x1.5 Threaded

If you plan to use this bottle with a Gauntlet, you must remove and leave removed, the tank shroud. This bottle cannot use the flex reg as it is threaded M18.

Consider our barrel bands for the 500cc and 700cc bottles on the Gauntlet found HERE

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Sale!
$285.00 – $295.00
Huben Power Adjustable reg on a 300cc/.30L CF Tank
Huben Power on 300cc Carbon Fiber Bottle
$285.00 – $295.00
Direct replacement with no modifications required for the Umarex Gauntlet 2/G30/G30SL other than the fill nipple access hole that is discussed in the video below!
19ci/300cc/.30L 4500 PSI Carbon Fiber Bottle in two finishes.

Hajimoto is bringing sexy back! Doesn’t that carbon fiber look awesome on there!

FEATURES
- Rotational bonnet allows for exact thread indexing/clocking of the regulator to the PCP.
- Stream line and slim structural design
- Thread: Bottle = M18*1.5 and PCP = G1/2-14
- Max up to 4500psi high pressure gauge input.
- Regulating output pressure range 500psi~3600psi
- Comes with standard 8mm quick disconnect male foster fitting adapter for filling.
- Dust caps may be green or black randomly.
- Tank optional finish gloss or matt.
- The regulator has a high air flow rate, is light weight, easily operational, re-buildable, designed for use with HPA/CO2.
Includes the Huben Power Black Hawk Pro regulator.
The CF Tank is CE Certified made to ISO 11119-3 standard. They have seamless aluminum alloy 6061 liner wound with high strength Japan-imported carbon fiber and glass fiber reinforced plastic full composite layers and subjected to an autofrettage pressure. This 4500 PSI carbon fiber bottle is 19ci and is absolutely gorgeous on the Gauntlet.
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$294.00
NEW MODEL
PRO V3 Reg on a 22.5ci/370cc/.37L CE Certified CF Tank
Ninja Pro V3 Reg on 22.5ci Carbon Fiber Bottle
$294.00

ALL NEW!

Direct replacement with no modifications required for the Umarex Gauntlet 2 and Gauntlet 30 Cal!
22.5ci/370cc/.37L CE Certified CF Tank
Shaves off 1/2 a pound of weight compared to the 4500psi stock aluminum tank.
A complete regulator rebuild kit is included!

Includes the New Hajimoto Pro V3 regulator with Stainless Steel rotational bonnet.
Say goodbye to gauges and foster nipples not lining up with the openings in the stock.

The CF Tank is CE Certified made to ISO 11119-3 standard. They have seamless aluminum alloy 6061 liner wound with high strength Japan-imported carbon fiber and glass fiber reinforced plastic full composite layers and subjected to an autofrettage pressure. This 4500 PSI carbon fiber bottle is 22.5ci and is absolutely gorgeous on the Gauntlet series of PCP.

The Gauntlet 1 will need to have its tank shroud inside diameter increased slightly to allow the foregrip/tank cover to side over this carbon fiber tank or simply remove the tank shroud.

Operating Pressure Recommendations

Gauntlet 1:
.177/.22 Stock operating pressure 1100PSI Max Recommended pressure is 1400PSI.
.25 Caliber Stock operating pressure 1900PSI Max Recommended pressure is 2300PSI.

Gauntlet 2:
.22 Stock operating pressure 1900PSI Max Recommended pressure is 2150PSI.
.25 Caliber Stock operating pressure 2100PSI Max Recommended pressure is 2400PSI.

NINJA REGULATORS ARE MADE IN THE USA!

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Sold out!
Original price was: $339.00.Current price is: $295.00.
Flex Reg on 18ci/295cc/.29L CE Certified CF Tank
Power Flex Combo 18.3ci Carbon Fiber 4500PSI
Original price was: $339.00.Current price is: $295.00.
Introducing a Hajimoto Productions Exclusive offering!
18ci/295cc/.29L CE Certified CF Tank

Fits the Gauntlet 2 without any modifications.

The CF Tank is CE Certified made to ISO 11119-3 standard. They have seamless aluminum alloy 6061 liner wound with high strength Japan-imported carbon fiber and glass fiber reinforced plastic full composite layers and subjected to an autofrettage pressure. An 18.3ci carbon fiber 4500PSI cylinder with externally adjustable Ninja Flex Reg for your Umarex Gauntlet! The massive volume of air afforded you is mind-blowing.

The diameter of the tank is 54-55mm across so a modification to the forearm is required if you desire to continue to use the Gauntlets tank shroud. 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.

Gauntlet Bottle Shroud Mod

Please see the examples provided in the accompanying photos.

The Gauntlet 2 forearm slides right over without any issue. Only one access hole needs to be drilled so the fill port is accessible at the bottom. Please be careful if you have accessories on any of the MLok openings as the screws or MLok fasteners may scratch the tank when the shroud is slid forward or back.

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!.

The cylinder’s outside dimension is slightly larger than the stock aluminum tank so my standard HP Barrel Band does not fit. You will need to use the HP Barrel Band CFT version
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Regulator is Made in the USA!
The Power Flex Combo is set to either of the two Gauntlet configurations.
Simply select the proper configuration.

Power Flex Combo Configuration For .177/.22 Cal
Flex Reg set to 700 to 1500PSI
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Power Flex Combo Configuration For .25 Cal
Flex Reg set to 1600 to 2400PSI
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DO NOT USE Power Flex Combo Configuration For .25 CONFIG on .177 or .22
they are not capable of handling the pressures.
Because of practical limitations, regulator output will be +/- 50PSI (3.5bar) within the requested output.
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$310.00 – $350.00
500cc CF Tank with Adjustable Reg
Flex Reg RTI Version & Tank
$310.00 – $350.00

Flex Reg designed and configured specifically for RTI PCP’S such as Prophet, Priest, & Priest 2
This Flex Reg comes paired with a brand-new Carbon fiber 4500PSI tank. The regulator is externally adjustable and has an effective adjustable range of 900PSI (62bar).

Using the slider you select what the maximum output will be and because the regulator has the ability to adjust, you can reduce that maximum output pressure down as much as 900PSI (62bar). You can of course set the pressure anywhere along that 900PSI (62bar) range to suit your tuning requirements. The regulator will not have a pin or ball seal in the bonnet. The tank cannot be removed while under pressure and must be degassed.

Because of practical limitations, regulator max output will be +/- 50PSI (3.5bar) within the requested maximum output.

Comes with a spanner wrench for adjusting the output on the fly.

** This regulator is 5/8″-18UNF threaded and will not fit M18 threaded bottles. This configured Reg is not sold separately.

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Sale!
Original price was: $375.00.Current price is: $330.00.
Flex reg and 22.5ci/370cc/.37L CE Certified CF Tank
Power Flex Combo 22.5ci Carbon Fiber 4500PSI
Original price was: $375.00.Current price is: $330.00.

Introducing a Hajimoto Productions Exclusive offer!

22.5ci/370cc/.37L CE Certified CF Tank
Newly redesigned unit
Now has a high pressure and low pressure burst discs!

Installs on the Gauntlet 2 with minor tank shroud modifications, forearm slides right over the carbon fiber cylinder. Installation video at the bottom of the page.

The CF Tank is CE Certified and made to ISO 11119-3 standard. They have seamless aluminum alloy 6061 liner wound with high strength Japan-imported carbon fiber and glass fiber reinforced plastic full composite layers and subjected to an autofrettage pressure. This included a 22.5ci carbon fiber 4500PSI cylinder with externally adjustable Ninja Flex Reg for your custom build including the Umarex Gauntlet 1 or Gauntlet 2! The massive volume of air in these 22.5ci tanks 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.

Please be careful if you have accessories on any of the M-Lok openings as the screws or MLok fasteners may protrude into the tank area and scratch the tank when the shroud is slid forward or back. We recommend that if you have any MLok accessories installed, you remove them when sliding the shroud on or off. We also recommend covering the brass inserts in the tank shroud with cloth tape to protect your carbon fiber finish.

The Gauntlet 2 forearm slides right over without any issue. Only one access hole needs to be drilled so the fill port is accessible at the bottom. See photo below

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 regulator 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 +/- 75PSI to the requested output.

Select options