WELL SPRING SPARE KIT FOR SNIPER BOLT ACTION RIFLES MB04SPRING
Complete 3 Joule upgrade kit for L96 bolt-action airsoft rifles compatible with WELL MB01 / MB04 / MB05 / MB08 / MB14. Includes reinforced piston, 3J spring and spring guide with bearing for smooth operation. SKU: MB04SPRING.

Product Details
The WELL MB04SPRING 3 Joule Upgrade Kit is engineered to upgrade your L96-style airsoft rifle into a more powerful and durable platform. Perfect for players seeking improved performance without complicated modifications.
Kit contents
- Reinforced piston (compatible with WELL MB series)
- Pre-calibrated spring for ~3 Joule performance
- Spring guide with bearing to minimize friction and vibration
Benefits & use
- Increased power: Spring tuned for around 3J (actual results depend on BB weight and barrel length).
- Improved durability: Reinforced piston resists wear and repeated impacts.
- Smoother cycle: Bearing-equipped spring guide reduces vibrations and improves shot consistency.
- Compatibility: Direct fit for ASG WELL MB01, MB04, MB05, SL86, SR86, MB08, MB14 and compatible L96s.
- Simple installation: Plug-and-play swap; professional installation recommended if unsure.
Technical specifications
| Item | Specification |
|---|---|
| SKU | MB04SPRING |
| Compatibility | WELL MB01 / MB04 / MB05 / MB08 / MB14, L96 bolt-action compatibles |
| Piston | Reinforced high-duty piston (metal/polymer depending on batch) |
| Spring | Pre-calibrated for ~3 Joule |
| Spring Guide | Bearing-equipped for reduced friction |
| Application | Internal upgrade (piston + spring + guide) |
| Approx. weight | 200–300 g |
| Origin | WELL components |
Safety & notes
This kit increases replica energy. Check local laws and field rules before use. Installation by experienced technician recommended to ensure safe and legal operation.
Returns Policy
E-tactical.store recognizes the right of withdrawal as provided by the current legislation D.Lgsl. 206/2005. The useful term for availing of this right is 14 calendar days from the receipt of the goods within which the Customer is required to communicate it by registered letter with return receipt to the address:
Via Acque Alte 135/Bis
04100 Borgo Podgora (LT) - Italy
Phone: +39 331 7502815
P.I.V.A. 02995700594
In the letter requesting to exercise the right of withdrawal, it is necessary to indicate the details of a bank account in the name of the customer who concluded the order to proceed with the refund of the amount due.
Shipping
E-Tactical Store ships throughout Italy, including the Italian islands and abroad.
- Shipping costs to Italy and the Italian islands start from € 6.90 and vary in relation to the weight of the package. Shipping is free for orders over € 99.
- International shipping costs start from € 15.00 and vary according to the weight of the package. Shipping is free for orders over € 499.
The payment methods available are:
- Cash on Delivery (NO additional costs, Available only Italy and Italy islands)
- Paypal e Credit card
- Postepay (Available only Italy and Italy Islands)
- Wire transfer
Shipments will be made by GLS express courier. The purchased goods travel at the risk of the buyer, we are not responsible for damage caused by the GLS carrier.
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