// Knowledge Base
Frequently asked questions.
Everything about materials, fitment, compensators, rails and orders. Can't find it here? Contact us.
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We primarily use high-strength PETG, selected specifically for its durability, impact and weather resistance. For certain parts we also use other engineering-grade materials depending on the application. All materials used are always listed on the product page.
3D printing allows us to create highly functional, low-to-mid-volume products with rapid design improvements. This enables us to offer unique accessories that are difficult or uneconomical to manufacture using traditional methods.
Our products are designed with strength and durability in mind. Material selection, print settings, and part orientation are optimized for real-world use. However, no 3D printed part is indestructible, and products should always be used as intended.
Yes. Most of our products are printed using materials that offer excellent resistance to moisture, sunlight, and outdoor conditions. This makes them suitable for regular outdoor use.
Yes. New designs are tested and evaluated before being released. We continuously improve our products based on testing and customer feedback.
Yes. All PRINT-FORCE products are tested during development to ensure proper fit, durability, and real-world usability on the TP50 Compact platform. Feedback from testing is used to refine each design before release.
Yes, we offer a limited lifetime warranty on all our 3D-printed parts. If a part fails under normal use, contact us 🔗 and we'll make it right.
Most parts are made from PETG or PETG-HF, chosen for strength, durability, and UV resistance.
Flexible components, such as detents, are made from 95A TPU for the right balance between grip and flexibility.
All materials naturally wear over time depending on use, but PETG-HF and 95A TPU are selected for long-term durability.
They are designed to handle repeated use while maintaining strength and shape under normal conditions.
Most products can be cleaned using a soft cloth and mild soap with water. Avoid aggressive chemicals unless specifically stated otherwise.
We focus on quality materials, practical designs, extensive testing, and customer support. Every product is designed with functionality, durability, and user feedback in mind.
All our products are designed specifically for the Umarex T4E platform, including the TP50, TP50 Compact (Gen1 & Gen2). Each product page clearly lists compatible models. Please note that our Gen2 Punch Button is compatible with all Umarex T4E Gen2 markers, including the HDP50, HDP50 COMPACT, HDR50, HDR68, HDS50, HDS68 and all TP/TR/TS models.
Compatibility information is listed on each product page. If you're unsure whether a part will fit your specific setup, contact us before ordering and we'll be happy to help.
To guarantee the highest quality and a perfect fit, we are launching our compensators in three consecutive phases. Phase 1 features Size Small, specifically designed for mounting directly onto the base Tuning Barrel. Phase 2 features Size Medium, designed for setups using a Tuning Barrel with an Extension. Phase 3 features Size Large, the ultimate setup custom-made for the Sniper Barrel Extension.
No, the compensators are exclusively designed for use with aftermarket tuning barrels like the HD24 series. Always make sure to match the size of your compensator (Small, Medium, or Large) to your specific barrel combination.
The stock TP50 Compact can use 12.7mm ammunition. However, the HD-tuning barrels and extensions are designed to only fit 12.5mm ammunition. Always make sure to double-check your ammo before using your marker to ensure proper fitment and safe, reliable performance.
We currently recommend:
Home Defence-24 HDP/TP50 Compact tuning barrel 🔗 for best compatibility and performance.
For extended setups, you can also use the tuning barrel with 10cm extension: HDP/TP50 Compact Tuning barrel with extension 🔗
If you want a longer "carbine/sniper-style" configuration, you can use an extra barrel extension on the tuning barrel such as: HDP/TP50 Compact Sniper barrel extension 🔗
Always ensure all parts are compatible with your specific HDP/TP50 Compact before installation.
We do NOT sell barrels.
The compensators are made from Bambu Lab PETG using the 2026 formulation. This material was selected for its strength, durability, and resistance to normal outdoor conditions. Any included fastening hardware is made from stainless steel.
Each compensator is individually surface-finished to remove visible 3D-print layer lines before receiving a durable matte black protective finish. This creates a clean, uniform appearance with improved surface protection and an OEM+ factory-inspired look.
Choose the size that matches your HD-24 barrel configuration:
Small: standard HD-24 tuning barrel without an extension.
Medium: HD-24 tuning barrel with the 10 cm extension. This version is still in development.
Large: HD-24 setup with the Sniper extension. This version is planned for a later stage.
No. The compensator is designed specifically around the aftermarket HD-24 tuning barrel and does not fit the stock factory barrel. Always confirm your barrel setup and select the matching compensator size before ordering.
No. The compensator functions as a precision-fit barrel cover and mounting platform. It does not increase the marker's power, velocity, or sound output. Any performance difference comes from the installed barrel system, not from the compensator itself.
The Small compensator for the standard HD-24 tuning barrel is currently the only version available for pre-order. The dedicated Medium version for the 10 cm extension remains in development, while the Large version for the Sniper extension is planned for a later stage.
The Small compensator slides over the muzzle end of the HD-24 tuning barrel and seats against the barrel shoulder. The protective threaded end cap of the HD-24 barrel then locks it firmly in place, creating a secure, zero-play fit without unwanted rotation or movement.
The Small compensator costs €39,95 and is designed for the standard HD-24 tuning barrel without an extension.
Although the compensator significantly changes the appearance of the TP50 Compact, it is also designed as a protective barrel cover with a integrated accessory rail.
Yes. The Small compensator features an integrated 11 mm dovetail rail on top for compatible accessories, including the PRINT-FORCE Fiber Optic Sight or Picatinny rails.
Each compensator is printed, prepared and finished by hand. The surface is sanded to reduce visible print lines before plastic primer, matte-black paint and a matte protective clear coat are applied.
Because the compensators are manufactured and finished by hand, very small minimal cosmetic differences may occur. These minor variations do not affect fitment or normal operation.
Like any painted product, the finish can show wear or scratches through impacts, improper storage or contact with sharp accessories. Handle the compensator carefully and avoid aggressive cleaning products
The compensator is designed for a secure, low-movement fit. If noticeable movement remains, stop using it and check that the barrel, threaded cap and compensator are correctly positioned.
C Yes. The Small compensator can also be used with the HD-24 tuning barrel and 10 cm barrel extension. The upcoming Medium compensator is designed to cover more of the extended barrel setup and provide a longer, more integrated appearance.
The factory 11mm dovetail limits optic choices and can feel less stable with modern accessories.
PRINT-FORCE Picatinny rails provide a stronger, more universal mounting system for red dot sights and other attachments.
A modular system gives you more control over your setup.
Instead of committing to a single fixed length, you can expand only when you need more space, making it more flexible and cost-efficient.
Yes. The PRINT-FORCE rail system is modular.
You can start with a Base Rail Pack and later expand it with 40 mm Extension Packs to reach a full 160 mm rail setup if needed.
Yes. The system is modular by design.
Base Rail Packs and 40 mm Extension Packs are fully compatible with each other, allowing you to build your setup step by step.
Yes. The PRINT-FORCE rail system is engineered for a precise, secure fit on the HDP/TP50 Compact platform.
Once installed correctly, it forms a rigid and reliable mounting base that keeps your optics firmly in place, even during repeated use. The design also adds extra versatility, allowing you to mount accessories such as a sling point or other compatible attachments without compromising stability.
A correctly installed rail should sit fully flush on the TP50 Compact without any visible gaps or movement.
Once tightened, the rail should feel completely solid when mounted and should not shift under light pressure.
When installed correctly, PRINT-FORCE mounts are designed to stay secure during regular use.
We recommend checking screws periodically to ensure everything remains properly tightened.
Yes. PRINT-FORCE accessories are designed to be removable and reusable.
As long as the mounting hardware is kept in good condition, parts can be installed and removed multiple times without issue.
Yes. All required stainless steel mounting hardware is included with each product where applicable.
This ensures a secure and proper installation out of the box.
PRINT-FORCE accessories are designed to enhance usability and consistency without altering the core function of your marker.
They focus on improved mounting solutions, better handling, and more reliable ergonomics, offering OEM+ quality upgrades that refine the platform while staying true to its original design.
Yes. If you run into any installation issues, you can contact PRINT-FORCE for guidance.
We'll help you troubleshoot and make sure everything fits and functions as intended.
The detent sits over the barrel and holds each round securely in the chamber until enough pressure builds to release it.
A worn or weak detent can let rounds roll out of position, causing feeding issues and inconsistent shots.
The factory detent is one of the first wear items on the HDP/TP50 Compact.
Repeated impact from every round passing through it gradually softens and deforms the material, leading to reduced retention and less reliable feeding over time.
Our detent is manufactured from 95A TPU, chosen specifically for this application.
It's firm enough to hold rounds securely and prevent roll-outs, yet flexible enough to deform slightly as a projectile is forced past it, giving a smooth, consistent release every time.
No. 95A TPU has a low coefficient of friction, so the detent releases each projectile smoothly without "grabbing" it.
This keeps trajectory and velocity unaffected while improving retention and feeding consistency.
This detent is engineered exclusively for the Umarex T4E HDP/TP50 Compact, Gen 1 and Gen 2.
It is not compatible with the full-size HDP/TP50 Gen 1 or Gen 2, as the Compact uses a different clamp shell and barrel fitment.
Installation requires opening the polymer body and the clamp shell to access the barrel, so basic mechanical comfort helps.
Always depressurize and unload your marker first. Once inside, the old detent is simply swapped for the PRINT-FORCE version and seated back over the barrel before reassembly.
Rigid printed plastics like PLA or PETG can crack or fatigue under the repeated, rapid impact of a CO₂-powered bolt.
95A TPU is elastomeric, so it absorbs that kinetic energy and springs back to shape instead, making it far more resistant to long-term fatigue failure.
Each order includes 1× Detent. Like all our 3D-printed parts, it's covered by our Limited Lifetime Warranty under normal use.
If it ever fails during regular operation, just contact us 🔗 and we'll ship a replacement.
No. Fiber optic sights do not glow on their own.
They collect ambient light and make the sight picture brighter and easier to see in daylight and low-light conditions.
Fiber optic sights work best in daylight and low-light environments.
In complete darkness, they will not emit light, but they still provide a clear sight outline when some ambient light is present.
The sight set is designed specifically for the Umarex T4E HDP/TP50 Compact Gen1 and Gen2. It does not fit the standard full-size HDP/TP50 Gen1 or Gen2.
Each set comes in a small box and includes both a front sight module and a rear sight module. The complete set replaces the standard sight picture with a brighter, higher-contrast fiber optic setup.
Each set comes in a small box and includes both a front sight module and a rear sight module. The complete set replaces the standard sight picture with a brighter, higher-contrast fiber optic setup.
Yes. The front and rear sight colors can be selected separately in either Green or Red, allowing you to create the combination that works best for your eyes and preferred sight picture.
The red optical fiber may appear as a bright red-orange or glowing orange shade depending on the amount and angle of ambient light. This is normal and helps create a highly visible sight picture.
No. The sights use a fixed design intended to follow the original alignment of the HDP50 / TP50 Compact. They do not include mechanical windage or elevation adjustment.
The front and rear modules slide onto their corresponding factory sight rails using a precision friction-fit or snap-fit connection. No permanent modification to the marker is required.
No. The PETG-HF housings are designed to provide a smooth, uniform satin-black finish directly from the manufacturing process without requiring paint or secondary surface finishing.
Yes. The PETG-HF housings are selected for outdoor use and provide good resistance to moisture, sunlight and temperature changes under normal conditions.
Yes. The fiber optic sight set can be used with compatible PRINT-FORCE setups where the correct 11 mm sight mounting position remains available. Always check the compensator and sight compatibility information before installation.
PayPal offers a wide range of convenient payment options for a smooth checkout. We also proudly accept iDEAL (WERO), major credit cards, Apple Pay, Google Pay, Klarna, Trustly, and more, giving you maximum flexibility and peace of mind.
We ship from the Netherlands. Domestic orders typically arrive within 1–3 business days. International shipping times vary by destination. You can track your order using our Track & Trace 🔗 portal.
Yes, we ship to worldwide. Shipping availability and rates are calculated during checkout based on your location. Import duties, taxes, and customs fees are not included and are the buyer's responsibility.
Yes. Once your order has been shipped, you will usually receive tracking information via email within 24 to 48 hours. You can track your order in our Tracking Portal 🔗.
We ship orders within 24 hours. To modify or cancel an order, please contact us immediately. If your order has already been processed or shipped, please refer to our Returns & Withdrawal page for your options.
If your package arrives damaged or appears to be lost during transit, contact us 🔗 and we'll work with the shipping carrier to find a suitable solution.
Yes. Bulk discounts and wholesale pricing may be available for larger orders. Contact us 🔗 for more information.
We focus on our own designed product line for now, but feel free to reach out via our contact page 🔗, we're always open to hearing ideas and may be able to help depending on the request.
We're based in Bussum, The Netherlands. We design and manufacture everything in-house. We operate exclusively as an online store. Unsolicited sales or marketing emails & calls will be ignored. Visits are strictly by appointment ONLY and unscheduled visits will NOT be permitted.
By placing an order with PRINT-FORCE you agree to our Terms & Conditions 🔗. Please read them carefully before purchasing.
We take your privacy seriously. Learn how we collect, use, and protect your personal data in our Privacy Policy 🔗.
You can fill out our digital request form or view the official EU model withdrawal template directly on our Returns & Withdrawal 🔗 page. No account is required to submit a request.