SKU: 40031500595

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

Sale price$35.10 Regular price$39.00
Save 10%

Pay in installments of $9.75 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 28 - Aug 2

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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.

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: 40031500595

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 13 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
Claire
Bozeman, US
★★★★★ 5
Great diapers
Size: 4T-5T, Unit Count: 17
These pull-ups are great. They’re very soft and have a cute little Minnie mouse print on them. They’re great for the price. Luckily my daughter only needs them for bedtime, but they’re great because she can put them on and pull them up by herself. The brand is great, I’ve never had an issue with this brand before.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
T
Verified Purchase
Travis
Bozeman, US
★★★★★ 5
Awesome. Kid loves them
Size: 4T-5T, Unit Count: 99
Great. i love how i don't have to rip them. there is Velcro on the sides to pull off. and they fit great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
P
Verified Purchase
Paige
New York, US
★★★★★ 5
Our Go-To Pull-Ups for Potty Training
Size: 2T-3T, Unit Count: 124
We’ve tried a few different brands during potty training, and we always come back to Pull-Ups. They fit my daughter really well, are easy for her to pull up and down on her own, and hold up great overnight without leaking. The sides tear easily for quick changes, which is super helpful when you’re out and about. The designs are also cute and helped make potty training a little more exciting for my toddler. Definitely a staple in our house during this stage!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
S
Verified Purchase
So pretty
Whiting, US
★★★★★ 5
Luvs pulls up are the best
Size: 5T-6T, Unit Count: 48
I love this brand. It’s very secure, and the adjustable band makes it easy to tighten without taking off my child’s pants. It doesn’t leave an odor, the texture is smooth, and my child is always comfortable. The price matches the quality, and there’s no leakage or spillover. Overall, it’s very durable. Make sure to have it correctly fastened because the Velcro can leave scratches on child skin.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 9, 2025
L
Verified Purchase
L
Grantham, US
★★★★★ 4
Toddler approved
Size: 4T-5T, Unit Count: 99
Fits true to size and easy to pull up and down by my toddler. Very absorbent - perhaps a little too absorbent as it's taking my daughter forever to be potty trained and she's content in her soiled training pants... Great quality overall.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 29, 2025

recommand products