Airgun Services - Hajimoto Productions LLC

$60.00
Gun Stock Mod for Super Tune Kit
$60.00

The service of modifying your Gauntlet gun stock does not include shipping. Return shipping will be calculated and added at check out. Shipping cost will be based on a complete rifle sent to Hajimoto Productions in the original box and packing materials. If only the rifle stock is received and is in something lighter than the typical 14lbs, shipping credits will be applied prior to the rifle being shipped back to the customer. If the rifle is received in something heavier than the typical 14lbs, additional shipping costs will need to be paid prior to the rifle being shipped back to the customer.

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$70.00
Install Super Tune Kit
$70.00

Please note that these are services to your rifle and not just the parts. If your looking for parts only head to the PRODUCTS section of the website.

The service of installing the Super Tune Kit does not include shipping. Return shipping will be calculated and added at check out. Shipping cost will be based on a complete rifle sent to Hajimoto Productions in the original box and packing materials. Stock modification is part of the STK install which is why you need to send the entire rifle to us not just the action. If the rifle is received in something heavier than the typical 14lbs, additional shipping costs will need to be paid prior to the rifle being shipped back to the customer.

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$75.00
Generic Air Rifle Evaluation
Hajimoto Can You Fix My Airgun
$75.00

This is a general airgun service that can be used if you have an airgun with issues that are not necessarily listed in any of the other services. This service is a starting place for you to ship me your air gun that is acting up and I can determine what the issue is. The price is just a starting place and is not necessarily what it will take to repair the airgun.

Shortly after the order is placed you will receive shipping instructions on be package up the air gun to ship to use. The notification will provide you with all the address and label details that you need to have on the label to guarantee it makes it to us.

You must use the NOTES section below to tell us what the issues are with the airgun.

The shipping cost that is associated with this service is a placeholder and may be adjusted in price depending on how much lighter, heavier, larger, or smaller the actual package is when we receive it.

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$75.00
Notos Internal Porting
Notos Internal Porting
$75.00
Notos Internal Porting

This service provides increased airflow and efficiency of the internal pathways resulting in more power capability.

This is what we do to our Haji-Notos Custom Builds, but you can have the same service performed on your Notos as well. The internal transfer ports are increased, which results in greater airflow to produce more power efficiently. This service also includes a trigger to sear face polish to make the trigger a much smoother feel.

You ship us your complete Notos or just the action, with the stock and barrel removed, and we execute the service.

If you want to minimize shipping costs and you elect to ship just the action, follow the instructions below.

If you are shipping your complete Notos, ignore the below instructions and use your original Notos Box to ship your Notos.
- Notos Barrel Removal
Your Barrel is very easily removed by removing the 2.5mm button head screw on top of the Picatinny rail near the magazine opening. Once the 2.5mm screw is removed, there is a 2mm set screw below it that holds the barrel into the receiver block. Loosen the 2mm screw four revolutions and slide out the barrel.

Shipping

When you place the order for the above-described service, we will send you an order processing notification with a copy of your invoice. Shortly after that, you will receive a detailed notification with the shipping information to ship us your barrel for modification.
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$95.00
Gauntlet O-ring service
$95.00
This service tears the entire air rifle down, cleans and inspects for part wear, and replaces all the o-rings in your Gauntlet. Whether the o-rings are leaking from age or wear, whether the rifle is actually leaking or not, all o-rings are replaced. The rifle undergoes an incoming inspection which captures the functional and physical condition of the air rifle. This information is presented in a report which must be reviewed and approved prior to any work can begin.
The o- rings that are replaced are:
- (2) Regulator to gun o-rings.
  
  (1) Stock end cap o-ring.
  
  (1) Stock air stripper o-ring.
  
  (1) Barrel to shroud support collar at breach block o-ring.
  
  (2) Bottle block to pressure tube o-rings.
  
  (1) Valve body o-ring.
  
  (2) Pellet probe o-rings.
  
  (3) Barrel to breach block o-rings.
The action is verified and lubricated prior to returning the rifle. The rifle undergoes a pressure test for 24 hours to guarantee there are no pressure losses.
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$110.00
Gauntlet Barrel Tune
$110.00

This service is for all Umarex Gauntlets regardless of generation or caliber. Including all .177, .22, .25 and .30 caliber versions.

Service to increase the airflow of the air rifle to allow for better power, performance, and efficiency. Barrel transfer port increased, Barrel leade is properly set & polished, Bore is lapped and polished, and the crown is machined and polished.

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$110.00
For G30 and G30SL
G30 Barrel Shorten and Recrown
$110.00
Service to reduce barrel length removing the barrel choke making the barrel better for slugs. Service

The service executes the following:
- Reduce barrel length by 2.5″ to remove the choke.
- Recrown barrel.
- We provide a new shorter replacement barrel shroud.
This can be added to a custom build order or a send-in modification request. Customers who wish to send in their barrel for service can ship either the entire rifle or just the barrel, barrel shroud, and end cap. The barrel will be heavily cleaned and coated with silicone oil to protect the surfaces for the trip home.

Once the order is received, a follow-up email will be provided. Depending on the service request, the response will contain detailed shipping instructions, including the shipping address and other pertinent information required on the label for the service request being shipped to us.
This service price does not include shipping or parts. Shipping costs to return your PCP or PCP parts will need to be calculated and communicated to you before the order ships back.

The reduction of an airgun barrel typically results in a decreased rate of travel of 15-20 ft/s per inch.

Any outstanding balance must be paid before we ship out the service order.
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$110.00
Barrel Service Notos
Notos Barrel Service
$110.00
Notos Barrel Service

This is what we do to our Haji-Notos Custom Builds. but you can have the same service performed on your Notos barrel as well. The Transfer port work increases the port and polishes the opening to allow greater airflow to produce more power more efficiently.

You ship us your Notos Barrel and we execute the following:
- Remove the fixed molded plastic suppressor (the suppressor is destroyed in the process).
- Increase and polish the barrel transfer port.
- Two new barrel o-rings are provided.
- Clean up and polish the barrel crown.
- 1/2 x 20 UNF Threaded Adapter Included.
- Barrel Shroud End Cap and Barrel Guide Included.
- Thoroughly clean and silicone barrel bore.
Notos Barrel Removal

Your Barrel is very easily removed by removing the 2.5mm button head screw on top of the Picatinny rail near the magazine opening. Once the 2.5mm screw is removed, there is a 2mm set screw below it that holds the barrel into the receiver block. Loosen the 2mm screw four revolutions and slide out the barrel.

Shipping

When you place the order for the above-described service, we will send you an order processing notification with a copy of your invoice. Shortly after that, you will receive a detailed notification with the shipping information for you to ship us your barrel for modification.
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From $125.00
This Builder Starts With the Tactical Adapter
TacVenger DIY KIT CUSTOM
From $125.00

This is where you can build your own TacVenger Kit to install on your existing Avenger.

Only use this builder if you are including a carbon fiber bottle in the builder because the shipping fees are based on that item as a start. If you only want a couple of items, add them to your cart separately using the parts finder method and not this builder.

The Kit Starts with the Buck Rail Tactical. We are no longer using the AE Swede Chassis.

then you simply add the items you want in your kit and you are all set!

The WHT 4-16x16FFP scope comes with, a set of Picatinny scope rings and a Large Focus Wheel.

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Sale!
Original price was: $220.00.Current price is: $195.00.
Installation of our Sidelever on G2 or G1
Gauntlet Sidelever Install
Original price was: $220.00.Current price is: $195.00.

This service is for the installation of our sidelever cocking system installed in your action. The Sidelever is no longer being offered for .30 caliber variants.

Our side lever system eliminates one of the main gripes folks have with the Umarex Gauntlet and that is COCKING EFFORT!

There is no comparison in cocking effort when you apply the mechanical advantage a sidelever gives you. The installation is a non-destructive installation and can be reversed without any compromise to the airgun’s action or stock.

The sidelever system is a CNC milled 6061 Aluminum part which is hard anodized for a great match to the existing Gauntlet finish. The cocking vertical handle is an additive manufactured carbon fiber & ABS part that can be swapped out by you if you wanted to use a custom handle from wood or other material.

Our sidelever cocking system does require that you hold the handle back to swap mags but there is no need to hold back if you single load using the single shot tray.

One of the most common questions we get is “Can I just buy the parts and install them myself?” and the short answer is, no you cannot. For the reasons why, please read the ARTICLE we published in our blog in February 2023 on this topic.

See below for detailed shipping instructions and preparation videos.

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$310.00
Range & Power Trend Service
$310.00

This is the service that is included with the Gauntlet 1 Platinum Package as well as the Gauntlet 2 Gold, Platinum, and Ultimate packages. The service is an add-on for lower airgun package offerings that run the rifle through a series of shooting exercises in order to capture and chart power generation and accuracy. This service produces the actual targets shot by your rifle at 25 and 50 yards on 2″ targets. The responses that you provide during the questionnaire are what we use during the final adjustment and execution phases.

You will receive a detailed build sheet that captures every detail of what was performed on your air rifle. You will also receive a detailed data matrix and range result sheet which has the power generation matrix with different ammo weights, feet per second, foot-pounds of energy developed, and what the power adjuster was set to in order to develop those results.

These data sheets become a quick reference for baseline performance data that you can always refer to in order to understand where your power adjuster should be in order to achieve the stated results.

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Sale!
Original price was: $1,000.00.Current price is: $770.00.
The Haji-Notos Lab
Notos Services
Original price was: $1,000.00.Current price is: $770.00.
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 .030L (300cc) 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.
Shortly after the order is placed you will receive shipping instructions. The notification will provide you with the address and label details that you must to have on the label or the package to guarantee it is properly directed to the proper department. Once the PCP is received there will be an incoming inspection of the PCP which 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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