
Gun Steels, Explained: 4140 vs. 4150, 8620 & 9310, 416R & 17-4
What those steel numbers on barrels and bolts really mean, how heat treat and nitriding change the picture, and clear tradeoffs buyers will actually notice.
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What those steel numbers on barrels and bolts really mean, how heat treat and nitriding change the picture, and clear tradeoffs buyers will actually notice.

A practical guide to U.S. military 1911 and 1911A1 pistols. Read frames and slides, spot inspectors’ marks, understand arsenal rebuild stamps, and verify serial blocks across Colt, Remington-UMC, Ithaca, US&S, and Singer.

From a Birmingham bullet-mould shop to the Mk I–Mk VI service revolvers and post-war shotguns, here’s how Webley & Scott evolved—and what that means for buyers.