This is the newest member of my family. It’s an all Bula build with the exception of the Krieger 1/11 heavy barrel and the NM sights. Rear aperture is non-hooded. ARMS 18 mount with I believe Leupold rings(not my first choice but what I had in the bin). Scope is an SWFA 10X. The strange thing on the McMillan stock is there is no rear sling attachment point. Suggestions?