The Umarex service kit is a maintenance-parts set for the HDS68/TS68 .68 double-barrel platform. It provides the listed CO2 compensating screw, seals, springs and washers; it should be chosen for a confirmed service need, not as a stand-alone performance upgrade.
Which marker does the kit fit?
The product record names the Umarex HDS68 double-barrel shotgun. Z-RAM's model-pair rule also covers the corresponding TS68 name when the model number and .68 caliber match. That naming equivalence does not extend the parts to HDR68/TR68, HDX68/TX68 or HDB68/TB68.
What is supplied
The listed package includes one CO2 compensating screw plus multiple O-rings, springs and washers for the internal mechanism. Because the number and position of the small seals are not itemized in the text, use the current product image and scope-of-delivery information as the final purchase reference.
The kit is intended to restore sealing and normal function where the matching original small parts are worn or damaged. It does not establish that every pressure loss is caused by a seal, and it does not replace diagnosis of the marker as a whole.
Maintenance kit or tuning product?
A service kit replaces wear and sealing components. A tuning product changes a controlled operating characteristic. The two goals should remain separate even if maintenance is performed after a tuning change: new seals can support reliable function, but they do not prove a particular output.
If the marker leaks, inspect the documented sealing points and determine which part actually needs service before opening the package. A damaged sealing surface, incorrect assembly or an unrelated valve fault may require different work.
View the exact HDS68/TS68 service kit
Umarex Service Kit for the HDS 68 Double Barrel Shotgun cal.68
Why it belongs: It is the exact maintenance set containing the listed CO2 screw, seals, springs and washers.
Decision boundary: It supports diagnosis and replacement work; it is not a stand-alone power upgrade.
View the HDS68/TS68 Service KitA safe maintenance sequence
- Confirm the exact HDS68/TS68 .68 model and the fault you are addressing.
- Unload and fully depressurize the marker.
- Use the manufacturer's service guidance to identify the part and orientation.
- Use only a suitable lubricant where the instructions call for it.
- Reassemble without forcing parts, then perform a controlled leak and function check.
If your goal is projectile use rather than maintenance, keep that decision separate and consult the HDS68/TS68 projectile-loading guide.
When this kit is the right purchase
Choose it when you have the named double-barrel platform and need the listed replacement screw, seals, springs or washers. If the problem has not been diagnosed, first identify whether the fault is in the marker, capsule interface or another component rather than treating a complete parts kit as an automatic cure.
Important Legal Notice
Laws and regulations governing the purchase, possession, installation, modification, and use of the products described on this page vary by country, state, and local jurisdiction and may change. Before purchasing, installing, modifying, or using any product, you are responsible for confirming that it is permitted in your location and for your intended purpose. Product availability or delivery does not mean that purchase, possession, installation, modification, or use is lawful in your jurisdiction. Z-RAM does not provide legal advice, and the information on this page must not be treated as legal advice. If you are unsure, contact the competent local authority or a qualified legal professional.