Z-RAM Firing Bolt + Power-Pin + Z-Extension for Umarex HDR50 TR50 7,5 & 11 Jo. | Exportventil | 25-35J+

Z-RAM Firing Bolt + Power-Pin + Z-Extension for Umarex HDR50 TR50 7,5 & 11 Jo. | Exportventil | 25-35J+Z RAM Firing Bolt + Power Pin + Z Extension for Umarex HDR50 TR50 7,5 & 11 Jo. Exportventil 25 35J+ Up to 25 35+ Joules Fits 7. 5J & 11J Gen1 + Gen2 Looking for serious performance without the frustration of tearing apart your marker? This 3 in 1 combo gives you everything you need for a clean, high power upgrade. Drop in the stainless steel bolt and Power Pin, add the chamber extension and you're ready to go. No damage, no tools, no stress. Plug &

Z-RAM Firing Bolt + Power-Pin + Z-Extension for Umarex HDR50 TR50 7,5 & 11 Jo. | Exportventil | 25-35J+

🔥 Up to 25-35+ Joules | Fits 7.5J & 11J | Gen1 + Gen2

Looking for serious performance without the frustration of tearing apart your marker? This 3-in-1 combo gives you everything you need for a clean, high-power upgrade. Drop in the stainless steel bolt and Power-Pin, add the chamber extension – and you're ready to go. No damage, no tools, no stress.

✔️ Plug & play
✔️ Up to 35+ Joules – more with tuning barrel & HPA
✔️ Compatible with all HDR50 / TR50 versions (7.5J & 11J, Gen1 + Gen2)

🔧 What’s Inside

Power-Pin (stainless steel)
• CNC-machined for precision
• Fits 7.5J & 11J versions (Gen1 + Gen2)
• Enlarged valve port for more gas per shot
• Hex bore (2.5 mm) for better CO₂ flow
• Works with all standard and EX25 valves
• Output: 20–30+ Joules depending on setup

Z-RAM Steel Bolt
• CNC stainless steel
• No fragile Umarex Pin removal needed
• Drop-in fit for HDR50, TR50, HDP50, TP50

Z-RAM Chamber Extension
• Increases internal volume = more power
• Min. +8 Joules extra – even more with long barrel or HPA
• CNC steel body
• Screw-on, stackable design
• Also fits FSC, TCP, T8.1, T9.1 (with adapter – sold separately)

📦 In the Box
✔️ 1x Z-RAM Steel Bolt
✔️ 1x Power-Pin (stainless steel)
✔️ 1x Z-RAM Chamber Extension
✔️ 1x O-Ring (13.5 × 10 × 1.75 mm)

▶️ Watch install video on YouTube: [Link]

💥 Pro Tip:
For best performance, we recommend removing the valve disk and chamber block inside. Combine with Tuning Barrels for maximum results.

⚠️ Legal & Safety Info
• Not an official Umarex part
• Installation prohibited in Germany
• May void your warranty
• Check local laws – max. 7.5J in DE
• Sale only to adults (18+)

We have many other interesting tuning parts and ammunition for your marker!
Check out our collection and choose your marker.

Collections

Responsible Person in the EU and Application & Safety Instructions