Parts

Price range: $310.00 through $325.00
Flex Reg on 13ci Aluminum 3K
Gauntlet Flex Reg with 13ci Tank – Hajimoto Configurations
Price range: $310.00 through $325.00

Introducing a Hajimoto Productions Exclusive offer!

13ci/213cc/.21L Aluminum Tank 3000PSI
Newly redesigned unit
Now has a high pressure and low pressure burst discs!

Flex 13 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 | 3000/1600 to 2400PSI

Installs on the Gauntlet with minor tank shroud modifications.

A 13ci aluminum 3000PSI cylinder with externally adjustable Ninja Flex Reg with typical G1/2-14 threads connects to your Umarex Gauntlet 1 or Gauntlet 2 without any modifications!

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 13 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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$350.00
Hajimoto Flex Reg on 22ci Aluminum 3K for the G1
Gauntlet Flex Reg with 22ci Tank – Hajimoto Configurations
$350.00

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!
Price range: $360.00 through $560.00
Complete with Cylinder, Power Plenum, Bottle Adapter and Barrel Band!
Avenger Power Pak Bundle
Price range: $360.00 through $560.00
Introducing the Hajimoto Productions Air Venturi Avenger Bottle Conversion Power Pak Bundle!

You get everything you need to convert your Avenger into a lean mean bottle toting machine in days not weeks.

In the Bundle you get:
- User selected .30Liter (300cc), .50Liter (500cc), .58Liter (580cc), or .70Liter (700cc) 4500PSI Alsafe Carbon Fiber CE Certified Cylinder
- Doux Technologies Stainless Steel Bottle Adapter Kit
- Doux Technologies Power Plenum
- Hajimoto Productions Barrel Band with Picatinny Rail for your Bipod
Bundles save you big money!

You receive all your parts in one box typically in 4 days or less …….. not weeks!

INSTALL VIDEOS LISTED BELOW
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$365.00
NEW MODEL
Ninja/UX X-Reg on a 22.5ci/370cc/.37L CE Certified CF Tank
Ninja/UX X-Reg on 370cc Carbon Fiber Bottle
$365.00

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.

Includes the UX/Ninja X-Regulator.

The CF Tank is CE Certified, made to ISO 11119-3 standard. The cylinder has a 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 gorgeous on the Gauntlet series of PCP.

The Gauntlet 1 will need the inside diameter of the tank shroud increased slightly to allow the foregrip/tank cover to slide 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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Price range: $425.00 through $435.00
Flex reg and 22.5ci/370cc/.37L CE Certified CF Tank
Power Flex Combo 22.5ci Carbon Fiber 4500PSI
Price range: $425.00 through $435.00

Introducing a Hajimoto Productions Exclusive offer!

22.5ci/370cc/.37L CE Certified CF Tank (Available in matte or glossy finish)
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
Price range: $425.00 through $470.00
Flex reg and 30ci/500cc/.5L CE Certified CF Tank
Power Flex Combo 30ci/.5L Carbon Fiber 4500PSI
Price range: $425.00 through $470.00

Please note that this combo will not fit a Gauntlet or Gauntlet 2 as the tank diameter is larger than the rifle’s tank shroud will allow. This combo is intended for builds that do away with the tank shroud or to be used on other PCP’s that allow for a typical paintball regulator installation.

Introducing a Hajimoto Productions Exclusive offer!

30ci/500cc/.5L CE Certified CF Tank
Newly redesigned unit
Now has a high pressure and low pressure burst discs!

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 includes a 30ci/500cc/.5L CE Certified 4500PSI cylinder with externally adjustable Ninja Flex Reg for your custom build.

The Power Flex Combo allows the user to externally adjust the regulator output pressure on the fly with an adjustment range of 900PSI!

Comes with a dedicated Spanner Wrench for power adjustment. MADE IN THE USA!

Because of practical limitations, regulator output will be +/- 75PSI (3.5bar) within the requested output.

Select options
$425.00
500cc CF Tank with Adjustable Reg
Flex Reg RTI Version & Tank
$425.00

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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Price range: $499.00 through $650.00
NEW MODEL
JTS COMP1 Portable HPA Compressor
Price range: $499.00 through $650.00
JTS COMP1 Portable PCP Compressor
- Max. pressure: up to 4,500 PSI.
- Power converter is built inside unit.
- Exclusive heat pipe cooling system.
- Adjustable auto-shutoff.
- Power source: 12V car battery or 110V/220V outlet.
- Moisture filter.
- The compressor includes carrying handle.
- Thermal dissipation system with high-flow fan cooling.
- No oil required.
- Built-in water separator.
- Jumper cables included.
- Includes fill hose.
- Sealed needle-style crankshaft roller bearing.
CONSIDER THE PACKAGE DEAL FOR AWESOME SAVINGS
Package deal includes Compressor, Large Filter with two Cartridges, and Microbore fill whip!

Here are the COMP1 OWNERS MANUAL and schematic for your use and reference.

The oil to use for this compressor is 100% synthetic and can be purchased through AMAZON at the following LINK
This lubrication has high thermal and oxidation stability assuring long fluid life in both operating and storage conditions; Excellent performance in high temperature, high load, and continuous operating conditions.

The JTS COMP1 compressor is exempt from any other published discounts or coupon codes.
All/any warranties are manufacturer provided.

Please follow the CUSTOMER REPAIR REQUEST information found on the JTS website
.
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$625.00
Hajimoto Tune My Gauntlet G1 or G2
$625.00
We completely tune your supplied Gauntlet 1 or 2 NON SL Version, which includes everything listed in the section below.

The service includes a very detailed and time-consuming incoming inspection report that includes photos and other relevant information that detail the condition of the airgun and all of its pieces and parts. This report is provided to you and you must be reviewed and authorized in order for the work to continue.

Ordering procedures:
- Add all services and items to your cart.
- Be sure to use the notes section to communicate any known issues or special instructions.
- Check out.
Shortly after the order is received, you will receive an email notification containing shipping information that will include labeling and packaging requirements.

To better understand how the Gauntlet is transformed from a static you get what you get type of airgun, into an adjustable power and tunable PCP, take a look at this video that demonstrates how the power adjuster works if you should want to increase or decrease the power output for any given ammunition in order to get it to fly at the best rate of travel for that particular ammunition.
HOW TO ADJUST POWER WITH STK

We will build your order based on the information provided from the questionnaire as well as any specific requests, and before the airgun ships, any credits or additional charges will be settled.
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Sale!
Original price was: $1,000.00.Current price is: $735.00.
The Haji-Notos Lab
Notos Services
Original price was: $1,000.00.Current price is: $735.00.
You ship us your Notos and you get back a complete Haji-Notos with all of the following modifications applied.
- Haji-Notos Power Plant Combo Installed. (includes .036L (360cc) 4500 psi Carbon fiber bottle)
- Buck Rail Grip Adapter Installed.
- Buffer Tube with Castle Nut, Grip, and Adjustable Butt Stock Installed.
- Stock suppressor removed and a 1/2 x 20 threaded adapter installed.
- Buck Rail Suppressor Installed.
- Barrel transfer port increased and polished.
- Barrel Crown Polished.
- Internal Valving and Port Modifications for Greater Power Production.
- Hammer spring upgrade.
- Trigger sear face polished and lubricated.
- Bottle to Barrel Support Band for rifle Rigidity.
- Externally adjustable regulator.
- Fiber Optic Sights Installed.
- One Hajimoto Productions Expanded Magazine (11 rounds)
Please note that the Expanded Magazine cannot be used with the Fiber Optic fixed sites because the magazine sits taller and blocks the rear to front site alignment. You can always use the stock smaller 7 shot magazine with the fiber optic sites.

Shortly after the order is placed, you will receive shipping instructions. The notification will provide you with the address and label details that the package must have to guarantee proper direction to the appropriate department. Once the PCP is received, an incoming inspection will be conducted, and the results will be shared with you for review and authorization to proceed.

The shipping cost associated with this service is a placeholder and may need to be adjusted depending on the actual package size and weight we receive.
All stock/old parts are included when the Notos is returned to you. Please only ship the Notos in its pistol configuration to save on package space and shipping costs.

Typical turnaround times are 10 days or less once we receive authorization to proceed.
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