Polarstar Fusion Engine A&K SR25 Spacer Kit
Polarstar Fusion Engine A&K SR25 Spacer Kit is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Sign up to be the first to know when it's here
Description
Description
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 (purchased separately) allows the engine to interface with the rifles original M4 type hop-up chamber.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
