332 items in 7 pagesSAAperatureB8868-1Type 1January/1936 to November/19391 - 20000Gas trap, no tracks on bottom surface on either side of the teeth. Drawing number 'B8868-1' stamped on upper curved surface.SAAperatureB8868-1Type 2November/1939 to February/194020000 - 28000No tracks on the bottom of either side of the teeth and drawing number omitted.SAAperatureB8868-1Type 3-1February/1940 to December/195728000 - 6100500Early version. Rounded ramp shoulders below aperature disk.
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Narrow tracks (0.065 inches wide).SAAperatureB8868-1Type 3-2February/1940 to December/195728000 - 6100500Late version. Squared ramp shoulders below aperature disk. Wide tracks (0.085 inches wide). Edges of aperture disk smoothly finished.SAAperatureB8868-1Type 4/5December/0 to December/00 - 0NM. Part#s 7268110(0.0520 inch peep hole) and 7268109(0.0595 inch peep hole).
M1 draw numbers and manufacture dates for small parts. List if M1 Garand Draw numbers and manufacture dates. These figures are approxomite, from inspecting known correct examples and compairing to varioius reference materials mainly from Scott Duff, Jim Thompson, and others. Bolts D28287. Exploded Parts Diagram: M1 Garand Smith Tools, M1 Garand, Ruger 10/22. Stevespages.com ipb-springfield-m1a.html Weapons Guns, Guns And Ammo.