I agree with most of the above. The gun didn't really have to be all that long, make it into a "tanker" size weapon which conceivably could have been done, change the caliber to a lighter one, maybe a synthetic stock, but what materials could they have made a stock out of back then?
For DARN sure, replace the sights with HK type rotating drum with bigger apertures on it........and find a way to put a scout mount type optic on it.......
I agree with S Sumner, the M14 to me, was and is the pinnacle....espeically the latest configuration with shorter barrel and special stock with rails on it.....the proof is in the government orders I have seen for those weapons to come out of storage to go to the sandbox, along with the orders for THOUSANDS of magazines. No one should ever feel under gunned with a Garand. I'd carry one in the trunk for official duty if they'd let me over an AR 15 any day.
RR