January 1940 Gas Trap Conversion......Restoration?

[RCS]

If a receiver has had the 7th round repair, most of the time there is a discoloration where the ribs were built-up, reducing the ribs back to the low rib configuration will
not hide the discoloration nor will Parkerizing (unless jet black). All the dated 1940 barrels were used in the early direct conversions, then later barrels as rifles were
cycled-in for rebuild. Canfield states new SA GHS stocks were used but I have seen alot of early stocks converted to used the trapdoor butt plate. It is really difficult
to prove your rifle is a direct conversion and an easy restoration. The saw cut gas cylinder was used later on and would be incorrect on a direct conversion