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Sights / Optics: The front sight is a post set between two protective wings. The rear of the magazine is marked “UU” which is an Underwood mark. The left side of the stock, above the trigger, is marked with a post WWII Rock Island Arsenal Rebuild stamp “RIA / EB” (page 181). These are National Postal Meter marks (page 125). The right side of the butt is marked with an inspector’s cartouche “NPM / FJA in a box” next to a “crossed cannons” cartouche. The sling well is marked (partial) “TRIMBLE / TN” which was used by other manufacturers including (NPM) National Postal Meter (page 108). The interior of the handguard is marked “OI” which is an Inland mark (page 138).
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The Type III barrel band is marked “AI” which is an Inland mark (page 59). 7160060” which was used by IBM and used as a replacement during & after WWII (page 29). The Type III rear sight is marked “I.R.CO. The front sight is marked “P” which is a replacement produced during WWII (page 56). The bolt is marked “W” on the right lug which is a Winchester mark (page 36). The inside of the operating slide is marked “.U.” which is an Underwood mark (page 65). The smooth push button safety is unmarked which was used by Inland & others (page 95). The magazine release is marked “WA / M” is a post WWII rebuild mark (pages 100-101 & 185). The hammer is marked “.U.” which is an Underwood mark (page 89). M1 Carbines Wartime Production 7th Edition). The right rear of the trigger group is marked “SG” which is a Saginaw Gear mark (page 78 of Craig Riesch’s book, U.S. The barrel flat is marked with several inspection stamps. GENERAL MOTORS / 3 – 43” and “P” (under the barrel band). The top of the barrel is marked “INLAND MFD. Barrel Date: 3-43Īction Type: Semi Auto, Detachable Magazine Year of Manufacture: April to June, 1943 (page 28 of Scott Duff’s book The M1 Carbine Owner’s Guide). Arrow_back Returns To All Sold Items arrow_back Return To Sold Post-1900 U.S.