Abstract: A swing in window with an optional security screen having an outer window frame, an inner window frame and a single sash that may be opened without invoking the swing in emergency egress option. The swing in window will provide a legal egress size opening for the escape of the dwelling occupants in the event of an emergency and provide a means to easily clean the exterior of the window. The swing in window provides welded, continuous sealing weather bulbs, an alignment shim, an internal snubber and a high tensile security screen with concealed fasteners to prevent fastener tampering by an intruder.