Umarex Gauntlet Tune O-ring Kit

For G1 G2 & G30 Variants
Umarex Gauntlet Tune O-ring Kit
Umarex Gauntlet Tune O-ring Kit - Image 2
Umarex Gauntlet Tune O-ring Kit - Image 3
Umarex Gauntlet Tune O-ring Kit - Image 4
Umarex Gauntlet Tune O-ring Kit - Image 5
Umarex Gauntlet Tune O-ring Kit - Image 6
Umarex Gauntlet Tune O-ring Kit - Image 7

For G1 G2 & G30 Variants

Price range: $11.00 through $20.00

Hajimoto 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:

  • 2  of pellet probe NO-ring seals.
  • 2 sets of barrel o-rings.
  • 2 sets of tank block o-rings.
  • 2  of valve body o-rings.

 

Clear
SKU: HPGTOK Categories: , , , , , Tags: , , , , , ,

Description

Remember, this o-ring kit supplies you with enough o-rings for two replacements, not just one. This kit has been revised to include two of the low-wear anti-o-ring seals we call the NO Ring Pellet Probe Seal.

The below video demonstrates how to install the NO Ring on the .177, .22, and .25 caliber versions; the 30 caliber requires a different technique due to the relatively short ramp length of the pellet probe, see the second video for the 30 caliber installation.

For the G30/G30SL Use a pencil or other tapered tool to prep the NO Ring for installation. It is beneficial to do this installation in a warm location. The use of a hair dryer (not a torch or paint stripper gun) can be used to warm the material up for installation. Be sure to allow the NO-RING 15 mins rest time once installed before you close the bolt. This will allow the NO-RING to relax and shrink to the pellet probe before closing the bolt.

Lastly, the G30/G30SL NO Ring fits the bore very tightly and will shear off a small amount of excess swell material the first time it is chambered. Use a pencil or other tapered tool to prep the NO Ring for the G30/G30SL because the cardboard technique just does not work as well for the G30/G30SL. You will need to preform and manually install the G30/G30SL NO Ring. (Watch Video Below)

 

Additional information

Weight 2 oz
Dimensions 3 × 3 × 1 in
Caliber

, , ,

NO-RING ALONE

NO RING WITH KIT, NO RING ALONE

1 review for Umarex Gauntlet Tune O-ring Kit

  1. reeseleary (verified owner) –

    Great for the gauntlet 30.cal. for the quick fix .

Add a review

Related products

  • Sold out!
    Umarex Gauntlet Regulator Shim PakUmarex Gauntlet Regulator Shim Pak
    $18.50
    Umarex Gauntlet Regulator Shim Pak
    $18.50

    Hajimoto Productions Regulator Shim Kit For Umarex Gauntlet

    I have put together a very easy and complete stainless steel shim kit so you can adjust your Gauntlets Regulator output. The shims that I have included give you a wide range of adjustability to mix and match different thicknesses to get the regulator to output exactly what you want. The shim kit comes with easy to follow instructions which guide you through the process as to what shims you need to add to typically achieve my recommendations for each Gauntlet Caliber.

    The shim kit contains:

    • 2 – #5 Shims.
    • 1 – #3 Shim.
    • 2 – #2 Shims.
      (Two #2’s = One #4 | Two #5’s = One #10 | One #5 + One #3 = One #8, and so on)

    To take a stock G1 .177/.22 from the stock 1100-1050PSI to my recommended 1350-1400PSI you would add two (2) #5 shims (10).
    To take a stock G1 .25 from the stock 1900-1950PSI to my recommended 2100-2200PSI you would add one (1) #3 shim (3).
    The included two #2 shims are for minor adjustments if you have a finicky regulator.

    DETAILED LESSON/EXAMPLE:
    Let’s say your .22 Gauntlets regulator only puts out 1300PSI after installing the two #5’s when it should be 1350 to 1400PSI, you would add one #2 for a total of 12 to help get it there. If after the addition of the one #2, you’re still 50psi short so you would pull out the #2 and use the #3 for a total of 13.

    Always use a regulator output tester to confirm the output pressure of your regulator. It is the only safe and sure way to properly adjust the pressure of your regulator.

    You have to fill and purge so the Belleville washers settle into the new preload. Be sure to slow fill your bottle the first time only to 500PSI and then purge it, fill slowly a second time to 1000, and then purge fill the final time slowly and watch to be sure the reg has settled and does not exceed your target pressure. If it does exceed your target pressure, stop filling, purge and shim less.

    If you rapid fill, there is a good chance you will pop your burst disc.

     

    Read more
  • HP Strip Stak Pak for AvengerHP Strip Stak Pak for Avenger
    $47.00

    Air Stripper, Tension Spring and Baffle Stack

    HP Strip Stak Pak for Avenger
    $47.00

    UPDATE: The newer avengers have a screw-on barrel shroud and an end cap that is a two-piece unscrewable but the STP still fits and works without an issue. unscrew the shroud rather than the little screw shown in the video and simply unscrew the baffle washer array off the end cap and you are good to go.

    Strip Stak Pak for the Avenger

    A six piece kit that includes an efficient multiport air stripper that strips and channels air away from the pellet to allow for a more stable and less turbulent pellet launch from the muzzle. The kit also provides baffle chambers to help remove both noise and turbulence in the air stream. The end result is a more laminar air stream which reduces projectile instability and as a secondary benefit, reduces the report of the rifle. This kit is 100% compatible with the stock end cap or the DonnyFL A50 adapter.
    Air Stripper comes with o-ring and silicone grease for installation. The installation video for the Umarex Origin Strip Stak Pak is exactly the same so you can follow the installation video below.

    Replacement Air Stripper 0-ring is 14mm x 1.5mm

    Select options
  • High Travel Valve Stop For Umarex Gauntlet 1 or 2High Travel Valve Stop For Umarex Gauntlet 1 or 2
    $30.00

    Intended for higher power builds

    High Travel Valve Stop For Umarex Gauntlet 1 or 2
    $30.00

    This part replaces part #19 and allows for greater valve dwell producing more power to be produced at higher regulator pressure settings.

    The .22 caliber HTVS for the Generation 1 Gauntlet fits both the .177 and .22.  Do not order Generation 1 HTVS for the Generation 2 Gauntlet, they are not the same

     

    Select options

Copyright All rights reserved Hajimoto Productions LLC 2025

Proudly powered by WordPress . Theme: multipurpose shop by eDataStyle.