The ZCI Special Forces crane stock is a tactical alternative to standard M4/M16 stocks, offering both practical functionality and modularity for skirmishers seeking a compact, ergonomic cheek weld.
Key Features
- 6-position retractable design – adapt length of pull for different body armour configurations and shooting styles
- Aluminium 6061 construction – lightweight yet rigid, reducing overall rifle weight without sacrificing durability
- Integrated crane-type battery compartment – stores 3000mAh 8.4V custom batteries directly within the stock (battery sold separately)
- No tube required – retrofit-friendly design eliminates the need for a standard buffer tube
- Special forces aesthetic – compact, minimalist profile favoured in real-steel and mil-sim loadouts
Real-World Use Cases
Ideal for CQB skirmishers, mil-sim operators, and outdoor field players who want a cleaner silhouette and faster battery swaps. The integrated battery storage keeps your line of sight clear and your weight distribution forward-heavy, improving handling in close-quarter engagements or multi-round events. The adjustable length of pull makes it equally suitable for players in body armour and those in plate carriers.
Technical Specifications
- Material: Aluminium (6061-grade)
- Positions: 6-position retractable
- Battery capacity: Up to 3000mAh 8.4V (crane-type, optional)
- Compatibility: M4 and M16 AEG platforms
- Installation: No buffer tube required
- Finish: Black
Compatibility & Upgrades
This crane stock is engineered for standard M4/M16 receiver extensions and will drop into most aftermarket builds without modification. If you’re upgrading an existing AEG, simply remove your old stock assembly and secure this one. Pair it with a 3000mAh 8.4V battery (sold separately) to maximise runtime without adding bulk to your kit. Works with all standard gearbox types found in Tokyo Marui-compatible and clone platforms.
UK Legal & Site Notes
This is a non-functional airsoft component. Two-tone and black variants are both legal to own and use on UK airsoft sites. Always confirm your local site’s rules regarding stock design and battery type before attending. The crane-type battery compartment is a feature – ensure your battery connector and voltage comply with your RIF and site regulations.
Ready to upgrade your M4 or M16? Add the ZCI Special Forces crane stock to your basket now and enjoy free UK delivery on orders over £50.









