Choose the Z-RAM Flexible Buttstock for a standard 50 mm-diameter HPA bottle, commonly the 0.2 L format. Choose the separate 88 g CO₂ buttstock for a standard 88 g cartridge. These offers have different fit criteria: a familiar marker name or a bottle’s capacity alone is not enough to select the right one.
The useful detail in the video is the diameter
In Z-RAM’s handles-and-buttstock presentation, the flexible stock is introduced specifically for a bottle measuring five centimeters across. That is the same 50 mm diameter named in the current product description. The description says “like most 0.2L HPA tanks,” so the 0.2 L label is a helpful starting point, not a substitute for checking your bottle’s outside diameter.
This is a shoulder-rest choice for an existing bottle arrangement. It does not establish which gas connection or adapter fits your marker.
How the two offers differ
| Selection detail | Flexible HPA bottle stock | 88 g CO₂ cartridge stock |
|---|---|---|
| Specified supporting container | Standard 50 mm-diameter HPA bottle; listed for 0.2 L / 50 mm bottles | Standard 88 g CO₂ cartridge |
| Construction described | Black flexible material | Black stock with mounting screws |
| Included | One flexible buttstock | One buttstock and two mounting screws |
| Container included? | No HPA bottle | No 88 g CO₂ cartridge |
The flexible model is described as a tool-free slip-on accessory. The cartridge model is a screw-secured offer. This difference also helps identify the correct product when comparing photographs; neither offer is a bottle-and-stock package.
Why “50mm” in a link can be misleading
The 88 g stock’s product link still contains “50mm,” but its current title and description identify it as the stock for 88 g CO₂ cartridges. Do not transfer the flexible HPA stock’s diameter specification to the cartridge stock on the strength of that link. For the cartridge version, the stated requirement is a standard 88 g CO₂ cartridge.
A new bottle stock is a different question from keeping an original stock
If you are considering an 88 g adapter and want to retain the marker’s existing shoulder rest, use the separate guide to whether the original stock can stay with the Z-RAM 88 g ON/OFF adapter. The two accessories compared here are standalone purchasing options for shoulder contact on the specified container, not an answer to that adapter-clearance question.
Before ordering, identify the container you actually have, check the relevant fit detail, and select the matching stock offer. If the container is neither a confirmed 50 mm HPA bottle nor a standard 88 g CO₂ cartridge, ask Z-RAM to check the exact container instead of choosing by appearance.
Choose the stock for the container you already use
Z-RAM Flexible Buttstock Black 50mm diameter for 0.2L bottle
For a standard 50 mm-diameter HPA bottle, commonly 0.2 L. One black flexible stock is supplied; the pictured HPA bottle is not included.
View the 50 mm bottle stock
NEW!!! Z-RAM Buttstock Black for 88g co2 cartridges
The separate stock for standard 88 g CO₂ cartridges. Includes one black buttstock and two mounting screws; the cartridge is not included.
View the 88 g cartridge stockThe flexible stock’s five-centimeter fit
The relevant part of this presentation is the flexible stock and its stated bottle diameter. The earlier handle discussion is a separate accessory choice.
▶ Play on YouTube🚀 www.Z-RAM.net 🚀 Z-RAM Handle, grips, buttstock for FSC, TCP, RAM Launcher First Strike Pepperball😎
Channel: Z-RAM
The separate 88 g cartridge stock
This short introduces the shoulder-support role of the 88 g cartridge stock. Use the current product listing above for the precise fit and supplied parts.
▶ Play on YouTube🚀💥 Ultimate 88g co2 Shoulder Stock – Z-RAM Buttstock for 88g co2 capsules for FSC HDR68 HDR50 HDP50😎
Channel: Z-RAM
Important Legal Notice
Laws and regulations governing the purchase, possession, installation, modification, and use of the products described on this page vary by country, state, and local jurisdiction and may change. Before purchasing, installing, modifying, or using any product, you are responsible for confirming that it is permitted in your location and for your intended purpose. Product availability or delivery does not mean that purchase, possession, installation, modification, or use is lawful in your jurisdiction. Z-RAM does not provide legal advice, and the information on this page must not be treated as legal advice. If you are unsure, contact the competent local authority or a qualified legal professional.