Gas grenades are mission-critical equipment for support roles in airsoft milsim games. Over time, repeated filling and deployment degrades the internal seals, reducing reliability and gas efficiency. The EPES 40mm gas grenade seal kit provides authentic replacement seals to bring worn grenades back to factory performance.
Key Features
- Genuine EPES replacement seals – designed for 40mm gas grenades
- Restores gas retention – eliminates leaks from worn seals
- Easy DIY maintenance – no specialist tools required
- Cost-effective alternative – repair grenades instead of replacing them
- Compatible with standard 40mm gas grenade platforms
Real-World Use Cases
Ideal for milsim support players, grenadiers, and anyone running multiple gas grenades in their loadout. Essential for maintaining a reliable grenade cache during extended operations or campaign events. Keep spares on hand for field repairs.
Technical Specifications
- Product Type: Seal Kit / Maintenance Parts
- Calibre: 40mm
- Power Source: Green Gas
- Brand: EPES
- SKU: e680-gr-40mm
- In Stock: Yes
Compatibility & Upgrades
These seals are designed for standard 40mm gas grenades used across most airsoft platforms. Before ordering, confirm your grenade type and check the manufacturer’s recommendation for seal replacement intervals. Pair with quality green gas and proper storage practices for maximum grenade lifespan.
UK Legal & Site Notes
Gas grenades must comply with your site’s chronograph and safety regulations. Some UK sites have specific rules on gas grenade deployment – check with your skirmish organiser before the event. Transport and storage should follow local firearms legislation and airsoft community guidelines.
Keep your grenade arsenal in peak condition with the EPES 40mm seal kit. Order online now for next-day UK delivery.










