How to Identify M-1 Garand Rear Sight Covers

This tutorial came off the garanditis bulletin board.  Current photos and data by board members Aimit, RS, and George A.

Early SA WWII without the letter. Narrow vertical ribs and wide horizontal rib.

Late SA WWII. Very wide vertical ribs. Some use on Post War SA rifles,

WRA Narrow ribs. Punch mark

HRA

Post war with deep ribs, probably subcontractor production.

Post war SA

SA Numbered with space between B and 8872

B8872 without the dash or the space, note rifle has reproduction checkered rear sight knobs which are much coarser than genuine checkered knobs.

WRA flat cover.  Some remnants of the original Dulite finish are still present