Something I cooked up on a 3D printer. A simply Ar15/M4 stock adapter for an S9-A1 pistol. I don't know if anyone out there has an SBR and is looking for a similar adapter, so I just thought I would throw it out there in the most appropriate place possible, the Steyr Forums. Made from an extremely durable and flexible plastic, it's a good material for this sort of thing, but the design of this prototype is just a little too uncomfortable and, well - flexible. A more rigid version of it is on the way, so if anyone is interested, just let me know.