A new folding stock for your SSR63 A2 to make it more practical, but above all to be able to use buffer tube compatible stocks. The stock also allows you to re-route the battery housing to the buffer tube to no longer have to dismantle your handguard to add a battery to your replica. Just like the SSR4!  Press the side button to collapse the stock. The stock does not lock in place and cannot be reversed to fold left.