SKU: 34613082430

Z-RAM Starterkit: Firing Bolt + Powerkit.50 + Z-Extension for Umarex TP50 HDP50 13J Version | GEN.2 | Exportventil | 25-35 J+

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Description

Z-RAM Starterkit: Firing Bolt + Powerkit.50 + Z-Extension for Umarex TP50 HDP50 13J Version | GEN.2 | Exportventil | 25-35 J+Z RAM Firing Bolt + Powerkit. 50 + Z Extension for Umarex TP50 HDP50 13J Version GEN. 2 Exportventil 25 35 J+ 2535+ Joules Built for GEN. 2 (13J Version) Want more output with less stress? This 3 in 1 combo takes your Umarex TP50 HDP50 (13J Gen. 2) to the next level. Includes the Powerkit. 50 for serious performance, our CNC stainless steel bolt and the Z Extension to unleash the full potential of your marker. No shell mods needed. Just screw in, lock

Z-RAM Firing Bolt + Powerkit.50 + Z-Extension for Umarex TP50 HDP50 13J Version | GEN.2 | Exportventil | 25-35 J+


🔥 25–35+ Joules | Built for GEN.2 (13J Version)

Want more output with less stress? This 3-in-1 combo takes your Umarex TP50 / HDP50 (13J Gen.2) to the next level. Includes the Powerkit.50 for serious performance, our CNC stainless steel bolt – and the Z-Extension to unleash the full potential of your marker. No shell mods needed. Just screw in, lock it, and shoot.

✔️ Plug & play
✔️ Up to 35+ Joules – even more with long barrel & HPA
✔️ For 13J GEN.2 TP50 / HDP50

 

🔧 What’s Inside

▪️ Powerkit.50 for TP50 / HDP50 13J GEN.2
• CNC stainless steel Power-Pin
• Enlarged valve port (1.5 mm)
• Hex bore (2.5 mm) for gas expansion
• Insert fits directly – no throttle needed
• Output: 20–30+ Joules on CO₂
• Allen screw mounting – quick & reversible

▪️ Z-RAM Stainless Steel Bolt
• CNC-machined from solid steel
• Designed for HDR50, TR50, HDP50, TP50
• Accepts the Power-Pin directly – No fragile Umarex Pin removal needed
• Durable, high-pressure ready

▪️Z-RAM Z-Extension
• CNC steel body – increases internal volume
• Adds minimum +8 Joules output
• Even more boost with long barrel or HPA
• Stackable screw-on design
• Also fits FSC, TCP, T8.1, T9.1 (adapter sold separately)

 

📦 In the Box
✔️ 1x Powerkit.50 (Insert + Pin)
✔️ 1x Z-RAM Steel Bolt
✔️ 1x Z-RAM Z-Extension
✔️ 1x O-Ring for Z-Extension (13.5 × 10 × 1.75 mm)
✔️ 1x Allen key (2.5 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 Notes
• Not an official Umarex product
• Installation prohibited in Germany
• May void your warranty
• Check your local laws – max. 7.5 Joules in DE
• Sale only to adults (18+)

 

▶️ Questions? Drop us a message – we’ll help you build the perfect HDR50 setup.

 

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

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 34613082430

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4.1 ★★★★★
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KLBlake
Cuba, US
★★★★★ 5
Perfect for keep-away
Size: Large Size 3, Color: Red-Blue
I purchased one of these for my pup and he has a ball throwing it up in the air and chasing it. Handy for something they can play with alone.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
L
Verified Purchase
Lorraine Nathanson
San Leandro, US
★★★★★ 5
Colorful, Sturdy & Great Value
Color: Large Set of 4
Purchased for our two puppies when they were 2 months old and weighed about 14 pounds so theses balls were a little big for them to hold in their mouths but that didn't stop them from trying. While they did like these balls they much preferred softer soccer balls, the later of which did not hold up well at all. I had hoped they would play with these balls more when they were older but that hasn't happened 5 months later. I guess it's no fun if you can't tear the toy apart. Colors are very bright and they do enjoy chasing after them as long as I am the one rolling them across the room for them. Maybe when they progress to batting things with their paws they will start to do this for themselves.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2025
E
Verified Purchase
Erik
Waukegan, US
★★★★★ 5
My pup loves them
Color: Large Set of 4
Colors are bright and my dog loves the squeaky! Good size no worries of choking.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 10, 2025
M
Verified Purchase
Mary Freeman
Waukegan, US
★★★★★ 5
amazing
Color: Large Set of 4
good buy worked well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
S
Verified Purchase
Steve
San Leandro, US
★★★★★ 4
3.5, Not 3.0
Color: Medium Set of 6
These balls were almost exactly what I needed. I was replacing my boy’s favorite ball, which is the 3” squeaky, spikey ball that fits in the chuck it launcher. Unfortunately I saw the shiny object next to it and because there were SIX balls and a dollar less, I failed to see that these are 3.5” balls instead of 3”…. Great balls but no fitty in the slingy. Buyer beware. No chuck it no problem. Save a buck.
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Reviewed in the United States on March 9, 2026

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