I recently added a No 4 MkI sniper rifle to my SMLE collection. I have a few questions that I would appreciate help on. First does anyone know of a current scope that would fit in the scope mount of the rifle? It would have to be relatively power (under 4X) and have a field of view no more than 32mm. The distance between the rings is only 2.375 inches and the eye relief would need to be about 3 inches. The serial number has an “A” prefix. The “AM” prefix on my .22 training rifle means Air Ministry. Does the A on this weapon mean the same? The gun is stamped with a TR below the serial number and above the serial number is the’ date “1943” and above that there is a stamped “M47” that I assume means modified in 1947. Finally, on the original No 4 Mk I sniper with the no 32 Mrk III scope was the rear sight removed to clear the scope tube? Thanks for any help anyone can provide.