While reading Canfield's M1 book, I found an interesting section about the gas lock screw. Springfield sent a letter dated Aug 7th
1941 to Winchester. Springfield had sent a blueline print of revision to the gas lock screw to Winchester dated June 21, 1941
this change showed the addition of a countersink (bevel) on the front end of the lock screw. This change is for the purpose of
eliminating burrs. Springfield inquired as to whether or not this change will be incorporated in manufacture and if any change
in price or delivery.
This would indicate that Winchester was not using the beveled gas lock screw up to August 1941 and probably for a period
after the Springfield letter.
my photos show different patterns and second photo shows beveled and non bevel lock screws
1941 to Winchester. Springfield had sent a blueline print of revision to the gas lock screw to Winchester dated June 21, 1941
this change showed the addition of a countersink (bevel) on the front end of the lock screw. This change is for the purpose of
eliminating burrs. Springfield inquired as to whether or not this change will be incorporated in manufacture and if any change
in price or delivery.
This would indicate that Winchester was not using the beveled gas lock screw up to August 1941 and probably for a period
after the Springfield letter.
my photos show different patterns and second photo shows beveled and non bevel lock screws
Comment