SKU: 84582389151

Z-RAM Starterkit: Powerkit.50 V2 + Z-Extension for Umarex HDR50 TR50, export valve for Gen2+Gen1 11J Version (25-35 Joule+)

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Description

Z-RAM Starterkit: Powerkit.50 V2 + Z-Extension for Umarex HDR50 TR50, export valve for Gen2+Gen1 11J Version (25-35 Joule+)Powerkit. 50 V2 + Z Extension for HDR50 TR50, export valve, Maximum Power for Gen2+Gen1 11J Version (25 35 Joule+) Up to 25 35+ Joules Built for Gen1 & Gen2 Looking to max out your Umarex HDR50 TR50? This 2 in 1 combo takes your 11J revolver straight to the top. Youll get brutal output, smoother operation and zero stress during installation. Includes our best selling Powerkit. 50 V2, and the Z Extension for a 25 35 Joule boost. All built for one

Powerkit.50 V2 + Z-Extension for HDR50 TR50, export valve, Maximum Power for Gen2+Gen1  11J Version (25-35 Joule+)

 

🔥 Up to 25-35+ Joules | Built for Gen1 & Gen2

Looking to max out your Umarex HDR50 / TR50? This 2-in-1 combo takes your 11J revolver straight to the top. You’ll get brutal output, smoother operation – and zero stress during installation. Includes our best-selling Powerkit.50 V2, and the Z-Extension for a 25-35 Joule boost. All built for one thing: maximum performance.

✔️ Plug & play
✔️ Up to 35+ Joules. With long barrel + HPA much more.
✔️ Designed for 11J Gen1 & Gen2

 

🔧 What’s Inside

▪️ Powerkit.50 V2 for 11J HDR50 / TR50
• Designed for 11J HDR50/TR50 (Gen1 + Gen2)
• Enlarged pressure volume
• Longer valve opening = more gas per shot
• Shortened Power-Pin (stainless steel)
• Output: 20–30+ Joules on CO₂
• Drop-in ready – reversible mod

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

 

📦 In the Box
✔️ 1x Powerkit.50 (Insert + Pin)
✔️ 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+)

 

▶️ Need help finding the right setup or have questions? We’re happy to help you build your ultimate TR50/HDR50 powerhouse.

 

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

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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: 84582389151

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4.2 ★★★★★
Based on 9 reviews
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Steve
West Palm Beach, US
★★★★★ 3
Couldn't get the zipper button open!
Special Size: Midweight, Size: 38W x 30L, Color: Dark Midnight Wash
Returned. They are probably a good product but I have arthritis in my thumbs and it was excruciating to try to undo the button above the fly. I seemed like like the button hole was too small. Maybe a gorilla finished final assembly?
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Reviewed in the United States on May 5, 2026
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Verified Purchase
Jordan W.
Massapequa, US
★★★★★ 5
Suprisingly great jeans.
Special Size: Midweight, Size: 29W x 32L, Color: Grey Wash
Love the fit and style of these. The waste is abnormally small, I purchased a 29 but also 30 would have been better. The rest of the fit is great, color is great, good mix between stretchy and stiff.
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Reviewed in the United States on February 10, 2026
A
Verified Purchase
Amazon Customer
West Palm Beach, US
★★★★★ 5
I like them, would buy again.
Size: 34W x 32L, Color: Tinted Light Wash
Fit nice, dont look nor feel cheap. The fit is nice and true to whats marketed. Material is not hard.
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Reviewed in the United States on June 4, 2026
P
Verified Purchase
Pen Name
Lowell, US
★★★★★ 4
Too baggy! (UPDATE): Bought this style of jeans again and they fit great!
Size: 31W x 30L, Color: Tinted Light Wash
These jeans are too baggy for my liking. Edit: I purchased more jeans of this style recently again and for some reason they fit a lot better to my liking than before when I first left the initial review for this. I have updated my review from 3 stars to 4 stars now. I purchased the black, grey, dark wash and tinted medium blue, and all 4 had a good fit on me. My original review stated that it was too baggy but the 4 jeans I just bought had a fitted look which is what i prefer, not too baggy and not to slim/skinny. I want to point out that the fit varies from the color choices. For example, the black, grey and dark wash jeans, i went with a size 32x30 because 31x30 for those colors were too tight/slim on me and for the tinted medium blue, i downsize to 31x30 because 32x30 for this color is too baggy. So buy the size you usually wear and if it's too slim or baggy then send it back and size up or down. Buying jeans on Amazon, i feel that you will have to buy a few different sizes and see which one fits you the best and then go from there. Edit (3/7/26): sizing is very inconsistent. So my previous edit above stated that the jeans I recently purchased fit great on me, and that's true, so I decided to buy another jean, same color and same size, this time the jean fit way too small/tight. I feel like amazon needs to do better quality control on these jeans. How does 2 pairs of the same jeans/color/size have such an inconsistent in size/fitting to it!
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Reviewed in the United States on December 14, 2025
A
Verified Purchase
Amazon Customer
Pawtucket, US
★★★★★ 5
Great fitting jeans just as nice as any name brand you can buy !
Size: 34W x 28L, Color: Tinted Light Wash
So I have been on a weight loss journey and the Amazon jeans have been my go to. For one to me they are just as nice as any of the name brands. They fit well are comfortable and honestly they are all I have purchased for a few years now. I’m also super short and this is one of the few brands I can find in a 29 length and that also saves me money since I don’t have to take them to a tailor to be modified. Material is nice to the touch nice thickness and has all the pockets you would expect in a blue jeans. Again great value for the money and this is about my 5th pair of these in various colors. I highly recommend give them a try and you will be hooked !
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Reviewed in the United States on December 14, 2025

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