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 6 - Aug 11

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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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4.4 ★★★★★
Based on 28 reviews
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Verified Purchase
Kylie
Waukegan, US
★★★★★ 3
Little pieces break off
Color: Dogwood (Brown), Size: Large (Pack of 1)
My dog is obsessed with this. It does last a long time even given her strong chewing capabilities. I wish it was a little bigger. The main reason I rated it so low is when my dog is chewing on this it breaks off a little plastic peice and sometimes it hits the back of her throat making her cough so you have to supervise with this.
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Reviewed in the United States on February 1, 2026
H
Verified Purchase
Heidi 
Carnegie, US
★★★★★ 5
Great for aggressive chewers
Color: Dogwood (Brown), Size: Large (Pack of 1)
My dog is an aggressive chewer so they are great for her. I would love to have one a bit thinner so it could fit in a holder so it is easier for her to hold while eating. This keeps her busy and is long lasting. I have purchased these multiple times.
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Reviewed in the United States on April 5, 2026
G
Verified Purchase
Greg B.
Dallas, US
★★★★★ 5
Durable and a favorite toy
My 7 month old Black Lab loves this bone. She is a chewer and has gone to town on the three ends. They are roughed up a bit but holding up better than expected. Highly recommend for dogs that love to chew.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
L
Verified Purchase
Lea
Boise, US
★★★★★ 5
Perfect for aggressive chewers
I have a 2 year old pittie and she chows thru bones in minutes, even those reviewed as "long lasting". This thing is still going strong after 9 months. She was not initially interested, had to spread peanut butter on one end, one time, and now it is her go-to chew toy. Looks a little mangled after all this time but she's not even 75% thru it. Highly recommend, no stomach issues.
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Reviewed in the United States on June 7, 2026
S
Verified Purchase
Sarah Brannan
Grantham, US
★★★★★ 5
Great, durable bone
My dog loves this bone! It’s super durable and has lasted a few months. Keeps my golden busy! Definitely will buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026

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