CZ Shadow 2 Pistol owners and perhaps for the owners of the ASG airsoft version as well, can use this Modular Red Dot Adapter (M.R.A.) from Outer Impact... "OuterImpact is excited to introduce the CZ Shadow 2 Pistol Red Dot Adapter Mount – M.R.A. This product will allow the shooter to utilize a variety of red dot sights on their CZ Shadow 2 with one adapter.