Most of the numbers you see are Drawing numbers with revision numbers after that. The revision portion can give you an approximate period of when that part was made. The barrel date is too new for an original M1C. The M1D had been adopted by this point. So it was most likey rebuilt based on the other drawing numbers and markings on the stock. The barrel is from Aug of 1951. The trigger housing is a post war Springfield housing. The P on the stock means it passed test firing after being built. RA stands for Red River arsenal or Rock Island arsenal. I'm probably getting the arsenal name wrong but that stock is not original. I would also be curious to know what the markings on the Oprod are as well as what type of rear sights it has. An original M1C would have lockbar rear sights. a post war rebuild would not. The Bolt is not original as its from 1943 based on the heat lot number you gave. No M1Cs in 1943, the 1st wasnt delivered until Nov 1944. The value of a near perfect condition, with original numbers matching scope and mount as well as the M2 flash hider.....maybe $2500-$3000. Without the scope and mount you can take off a minimum of $1000. Every piece that isnt original or at least correct for the year built knocks more value off. M1Cs were made in specific serial number blocks and certain parts would be expected for the serial range.
