Rifleman Q&A: Needham Conversion

by
posted on July 22, 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. **
Needhamconversion

Q. About 20 years ago I bought a Springfield rifle, and at that time I was told that it had an Allin conversion. Recently I watched a television segment on guns that showed a Springfield rifle with an Allin conversion, but that gun opened to the top, whereas mine opens to the side as the picture shows. Is my gun an Allin conversion or does it have a different name?


A. You do not have an “Allin Conversion.” Your rifle appears to be one of the Needham Conversions of an M1861/M1863 Civil War Springfield rifle-musket. These guns were converted by the firm of J&G Needham of Trenton, N.J., circa 1869, and are chambered for a .58-cal. center-fire cartridge. The number of rifles converted to the Needham pattern is not known but estimates range as high as 4,000 to 5,000. The Needham guns were not standardized or utilized by the U.S. military, but a few state militia units reportedly purchased some in the early 1870s.

The Needham Conversion is characterized by the side-hinging breechblock as opposed to the Allin Conversion’s top-mounted “trapdoor” breechblock. The Needham offered no real advantages over the standardized Allin action and was presumably developed as an attempt to circumvent the Allin patent.

—Bruce N. Canfield


This “Questions & Answers” was featured in the February 2005 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, Charles Karwan, 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 Treakle.

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

Latest

Henrylasr 01
Henrylasr 01

The Lever Action Supreme Rifle: Henry's 21st Century Lever Gun

The Henry Lever Action Supreme Rifle (LASR) is a step away from the company’s traditional-styled lever-actions, providing a number of features that carry the lever gun into the 21st century.

The Seekins Precision SIC: A Modular Rifle for Special Operations Use

Originally designed for a SOCOM military contract, the Seekins Precision SIC is designed for anyone who wants extreme long-range accuracy.

I Carry: Taurus TX9 Compact in a Galco Holster

In our latest "I Carry" segment, we pair the new Taurus TX9 Compact with a leather Stow-N-Go holster from Galco, Inc. This compact, concealed-carry kit is rounded out with an Xolotl automatic knife produced by CRKT.

The Armed Citizen® March 13, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Review: Canik USA MC9 Prime

Canik USA built out its concealed-carry handgun lineup with the MC9 Prime, which is a larger, yet still slim, CCW gun that sits in the same category as other upsized micro-compacts.

U.S. Army Awards Mossberg Contract for Additional 590A1 Pump-Action Shotguns

The U.S. Army has awarded O.F. Mossberg & Sons a contract for approximately $11.6 million dollars to supply the U.S. Army with additional Mossberg 590A1 pump-action shotguns.

Interests



Get the best of American Rifleman delivered to your inbox.