Rifleman Q&A: U.S. 'Trench Gun' Finishes

by
posted on December 9, 2022
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
Trench Gun

Q. I’ve been looking to buy an all-original World War II Winchester trench shotgun. I’ve been offered a Parkerized Model 12 stamped “U.S.”, and it has the Ordnance Corps bomb on it. All of the other all-original guns that I have examined were blued. Were any World War II U.S. military shotguns originally Parkerized?


A. With one exception, all shotguns procured by the U.S. military during or prior to World War II were originally blued. The sole exception are some very late production Winchester Model 12 “trench guns” that were factory Parkerized. These can be identified by the serial number (above approximately No. 1,030,000) and the rough, unpolished metal on the receiver. However, the factory Parkerized Model 12 trench guns will evidence some blued parts including pins, screws, triggers and slide-action bars.

closeup shotgun receiver metal finish coloring

While all other World War II-vintage military shotguns were originally blued, the quality of the bluing and metal polishing preparation sometimes showed evidence of hasty wartime manufacture that often resulted in a dull or brushed-blue finish.

Most U.S. military arms, including shotguns, were rebuilt after the war, and this procedure generally required that the formerly blued guns be refinished by Parkerizing. Due to the widespread post-war overhaul programs, the majority of World War II military shotguns observed today are Parkerized, but with the one exception noted above, such guns have been refinished.

—Bruce N. Canfield


This “Questions & Answers” was featured in the February 2007 issue of American Rifleman. At time of publication, "Questions & Answers" was compiled by Staff, Ballistics Editor William C. Davis, Jr., and Contributing Editors: David Andrews, Hugh C. Birnbaum, Bruce N. Canfield, O. Reid Coffield, Charles Q. Cutshaw, Charles M. Fagg, Angus Laidlaw, Evan P. Marshall, Charles E. Petty, Robert B. Pomeranz, O.D., Jon R. Sundra, Jim Supica, A.W.F. Taylerson, John M. Taylor and John W. Treakle.

To subscribe to the magazine, visit the NRA membership page and select American Rifleman as your member magazine.

Latest

Proof Research
Proof Research

The PROOF Research PXT: A New Approach to Barrel Rifling

PROOF Research has introduced PROOF eXponential Twist (PXT)—an advancement in rifling that improves durability, accuracy and shootability—to the commercial market.

Review: Springfield Armory Model 2020 Heatseeker

Back when American Rifleman reviewed Springfield's Model 2020 Waypoint, we noted that we ...couldn’t help but wonder if a tactical-version Model 2020 rifle might be a logical future offshoot of the Waypoint hunting rifle." With the Model 2020 Heatseeker, that version is finally here.

Marlin Goes Mad: The Marlin Mad Pig Customs Model 1894

Marlin’s latest Model 1894 lever-action rifle, a collaboration with Mad Pig Customs that is a far cry from traditional, delivers “modern, factory‑installed features previously found only on custom builds.”

I Have This Old Gun: The Southern Derringer

People carrying small firearms for personal protection is not a new concept, and in the middle of the 19th century, many pocket pistols were designed with self-defense in mind. One such gun, the Brown Manufacturing Southern Derringer, was among the earliest cartridge-firing self-defense guns.

The Jewish Community Is Embracing Our 2A Freedom

In this episode of the NRA’s The Armed Citizen Podcast, we interview Gayle Pearlstein, COO and co-founder of Lox & Loaded, a Jewish-owned and -operated gun club that now—after being launched only a year ago—has 50 chapters around the United States.

Affordable & Feature-Rich: The Springfield Armory Echelon Alpha 4.0C

Springfield Armory entered the world of modular, striker-fired handguns in 2023 with its Echelon line of pistols, and for 2026, Springfield is introducing an entry-level Echelon model with the Alpha 4.0C.

Interests



Get the best of American Rifleman delivered to your inbox.