370cc/.37L CE 5/8″ Threaded
$220.00
Introducing a Hajimoto Productions Exclusive offer!
- Shaves almost a full 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, and the bottle shroud slides right over the carbon fiber cylinder. Â
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.
8 in stock
Additional information
| Weight | 25 oz |
|---|---|
| Dimensions | 11 × 2 × 3 in |
| PRESSURE SETTING | G1 .17/.22 – 500~1500PSI Output, G1 .25/G2 .22, .25 – 1500~2400PSI Output, G30 CAL 2100-3100PSI Output |
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Sale!
Includes G1, G2, G30, G2SL, & G30SL variants
HP Barrel Band For Umarex Gauntlet
Rated 4.67 out of 5$25.00 – $35.00Price range: $25.00 through $35.00Select options -
5/8″-18UNF Threaded Unit
Flex Reg Hajimoto Configurations
Rated 4.00 out of 5$299.00 – $310.00Price range: $299.00 through $310.00Select optionsNOTE: THE NINJA FLEX REGULATOR HAS A LIMITED INVENTORY
Ninja Paintballs’ Flex Reg with Custom Gauntlet Configuration.
Say goodbye to only one fixed output pressure!
The user has an 800 – 1000 psi adjustment swing!
Requires minor forestock modification.
The regulator thread is 5/8-18UNF (Bottle Thread) and Typical Paintball Threads of .825-14 NGO (PCP Thread).
Please note the Flex regulator can be used with any Air, Co2, or Nitrogen driven air gun not just the Gauntlet, providing it has the correct threading.
The Ninja Flex regulator is available in any 900 psi spread to a maximum of 3100 psi output. For the Gauntlet, select the proper configuration.
If you select the Custom Configuration, you will need to use the NOTES above to communicate what you want the maximum output to be. Please note that the highest output the Flex Regulator can be configured for is 3100 PSI, but we can build it to any number below that. Example, a user wants the maximum output of their Flex regulator to be 2800, we will build the regulator so that the adjustable range of that build is 1800 to 2800PSI.How to read the below configurations
Example: Flex Reg .22 | 4500/1600 to 2400 psi
Flex Reg .22 = Regulator Type for .22 caliber
4500/ = The bottle’s maximum fill pressure
1600 to 2400 psi = The output range of the Flex RegFlex Reg Configuration For Generation 1 Gauntlet .177/.22 Cal
Stock .177/.22 | 3000/1100PSI Regulator
Flex Reg .177/.22 |3000/600 to 1500PSIFlex Reg Configuration For Generation 1 Gauntlet .25 Cal
Stock .25 | 3000/1900PSI Regulator
Flex Reg .25 | 3000/1500 to 2400PSIFlex Reg Configuration For Generation 2 Gauntlet .22 Cal
Stock .22 | 4500/1900PSI Regulator
Flex Reg .22 | 4500/1500 to 2400PSIFlex Reg Configuration For Generation 2 Gauntlet .25 Cal
Stock .25 | 4500/2100PSI Regulator
Flex Reg .25 | 4500/1500 to 2400PSIFlex Reg Configuration For G30 Cal
Stock .30 | 4500/2800PSI Regulator
Flex Reg .30 | 4500/2100 to 3100PSIComes with a dedicated Spanner Wrench for power adjustment. MADE IN THE USA!
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Bipod and Picatinny Rail
$15.00 – $70.00Price range: $15.00 through $70.00Select options
Installation Video for 1.5″ Picatinny rail on the Umarex Gauntlet forearm.
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Sumo 1.6 x 6.25 inches
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Remember to always order your suppressor one size larger for shrouded barrel PCP’s.
If you have a .22 caliber shrouded barrel PCP, you’ll want to order a .25 caliber suppressor.
The .177/.22 is for shrouded barrel .177 or direct barrel threaded PCP’s in .22.
The .22/.25 is for shrouded barrel .22 or direct barrel threaded PCP’s in .25.
The .25/.30 is for shrouded barrel .25 or direct barrel threaded PCP’s in .30. The exception to this rule is the Gauntlet .30 which is shrouded but because of the unique end cap, marries the barrel and shroud at the end.The Tanto, Tatsu, FX, or Sumo are not recommended for the Gauntlet .30 caliber because of the relatively small internal volume of these suppressors and the elevated operating pressures of the G30. We recommend the Ronin be used on all of our G30 Builds.
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For G1 G2 & G30 Variants
Umarex Gauntlet Tune O-ring Kit
$11.00 – $20.00Price range: $11.00 through $20.00Select optionsHajimoto Productions Tuning O-ring kit for the Gauntlet and Gauntlet 2
Now includes two of my “NO RING” pellet probe seals as HP-1 rather than the typical high wear donut orings.
I have put together the most common o-rings that fail during a tuning session. Most of the stock o-rings for the internals will gouge when the airgun is disassembled, this kit will allow you multiple attempts should any of the o-rings fail. Please note that the .30 caliber uses completely different internal o-rings than all previous Gauntlet Models including the .30 cal exclusive transfer port orings Which will be bagged as TP.
Some of the NO-Ring seals have the leading edge precision ground.

These tapered / precision ground types need to be installed as shown below
(Images are of the .30 caliber NO RING)
You get:
- 2Â of pellet probe NO-ring seals.
- 2 sets of barrel o-rings.
- 2 sets of tank block o-rings.
- 2Â of valve body o-rings.


























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