PolarStar A&K SR25 Spacer Adapter Kit for Fusion Engines
The A&K SR-25 Spacer Kit comes with a delrin spacer which gets pressed into the front of the Fusion Engine's cylinder to make the Version 2 engine the same length as the original extended Version 2 gearbox used in the rifle. Also included is a M5x0.8mm nut which is placed inside the rear of the lower receiver for the stocks bolt to thread into instead of the rear of the engine. This kit coupled with the A&K Masada Nozzle (sold separately) allows the engine to interface with the rifle's original M4 type hop-up chamber.
Application: Mounts to front of PolarStar Fusion Engine. Requires A&K Masada Nozzle.
Compatibility: For Version 2 PolarStar Fusion Engines
Material: Delrin, Steel
Manufacturer: PolarStar Airsoft
We Got Your Back!
Free Shipping on all orders over $120. Use coupon: "freeshipping".
- Online purchases: 14 days from the date of delivery with copy of emailed receipt for exchange or store credit only. NO EXCEPTIONS!
- All guns are to be tested upon purchase, no damaged or defective gun returns are accepted (we have a tech available if needed).
- All used items have been tested and are sold "AS IS", and are not eligible for return.
- All used gear is not eligible for return.
- All consumable items are non-refundable if opened (unused BBs can be exchanged for different BBs of equal or lesser value).
- All guns being picked up from our techs are tested and cleared upon return and are not under warranty.
- Customized products are non-refundable in any circumstances.
- If the item is defective or you receive the wrong item, please contact our customer service at email@example.com for further instructions.
Please click here to view our Order, Return and RMA policies.