The Silverback SRS variable mass piston is designed to allow for customized weight to your piston using the included weights. It is both durable and robust, designed to be a drop in fit for your Silverback SRS line of airsoft sniper rifles.
The installation is provided online and can be seen by scanning the QR code of the front (opening) side of the box. However, do contact a technician for further assistance if necessary.
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