SKU: 40031500595

Z-RAM Z-Extension Tuning chamber-extension for all Umarex T4E Typs & FSC/TCP

Sale price$35.10 Regular price$39.00
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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

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Description

Z-RAM Z-Extension Tuning chamber-extension for all Umarex T4E Typs & FSC/TCPTuning chamber extension (+8 joules min.) for Umarex HDR50 TR68 HDP50 HDB68 etc. For HDR50 TR50, HDP50 TP50, HDS, HDB now also for FSC, TCP, T8. 1, T9. 1Max out your markers potential Want more pressure, more volume, more punch? This CNC machined Z RAM chamber extension is the perfect upgrade to push your marker beyond factory limits. Works out of the box with all popular Umarex models and now also with FSC & TCP when combined with our adapter kit!

Tuning chamber extension (+8 joules min.) for Umarex HDR50 TR68 HDP50 HDB68 etc.

 

For HDR50/TR50, HDP50/TP50, HDS, HDB – now also for FSC, TCP, T8.1, T9.1
Max out your marker’s potential

Want more pressure, more volume, more punch? This CNC-machined Z-RAM chamber extension is the perfect upgrade to push your marker beyond factory limits. Works out of the box with all popular Umarex models – and now also with FSC & TCP when combined with our adapter kit!

🔧 How it works:
The Z-Extension increases the internal chamber volume, allowing more air or CO₂ to be released per shot – which means more FPS and Joules, even with short barrels and 12g setups. Use it with HPA and a long barrel? You’re in for a serious upgrade.

🔥 Features:
✔️ Minimum +8 Joules boost, even on stock setups
✔️ CNC-machined steel – built to last
✔️ Simple to install – screw-on design
✔️ Compatible with almost all Umarex RAM markers
✔️ Also fits First Strike FSC, T9.1, T8.1 & Pepperball TCP with adapter (sold separately)

📦 In the box:
1x Z-RAM Chamber Extension
1x O-Ring (13.5 × 10 × 1.75 mm)

⚙️ Usage notes: 
Minor trimming of your marker's plastic shell may be needed. Check this Video.
Multiple extensions can be stacked for custom builds.
For best performance: use with long barrels and HPA.
Glue it in place with thread-locker for safety.

✅ Works with:
HDR50, HDP50, HDS, HDB, HDR68, FSC, TCP, T8.1, T9.1 and more

⚠️ Safety notice:
This is not an original Umarex part.
Installation is prohibited in Germany due to performance increase.
Use may void your warranty.
Check local laws – in Germany, max. 7.5 joules allowed.
Sales only to persons aged 18 and over.

 

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: 40031500595

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Maranda
Waukegan, US
★★★★★ 5
Great fit
Size: Medium, Color: White
Perfect fit and they don't slide off the back of your ankle.
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Reviewed in the United States on March 16, 2026
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Jessica Burdett
Lexington, US
★★★★★ 5
Best socks!
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I love these socks! They last for years and they fit so nicely on my feet. I love that I can wear the in tennis shoes or wool boots and they never move!
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Reviewed in the United States on October 21, 2025
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john jeffrey elliott
Bozeman, US
★★★★★ 1
TOO SMALL
Size: Medium, Color: Blue
Nice socks, but they are way too small. Says they fit size 6 - 10. I kept 3 ( I wear size 8) and gave 3 to my daughter (size 8.5). We both agreed that they were just too small.
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Mar Gee
Phoenix, US
★★★★★ 5
Style and comfort
Size: Medium, Color: Black
Exactly what I was looking for. Style and sock thickness and comfort.
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Reviewed in the United States on December 14, 2025
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Amazon Customer
Natrona Heights, US
★★★★★ 5
Comfortable
Size: Medium, Color: Blue
So comfortable! They stay up perfectly love love love
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Reviewed in the United States on December 7, 2025

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