Double ring (19 and 25,4mm) with RIS rails [A.C.M.]
Double ring (19 and 25,4mm) with RIS rails [A.C.M.] Double ring (19 and 25,4mm) with RIS rails
Metal double ring 19 and 25,4 mm with RIS rails.
The single-slot RIS rails (1.8 cm) are located on the 25,4 mm ring.
Screws and Allen key are included.