Colt 1860 Army Richards “Cartridge Conversion” Revolver

by
posted on April 18, 2014
** 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. **
OG_ColtRichards.jpg

Colt 1860 Army Richards “Cartridge Conversion” Revolver

Gun: Colt 1860 Army Richards “Cartridge Conversion”

Condition: NRA Antique Very Good

Value: $2,500-$5,000

The years immediately following the American Civil War presented an interesting dilemma for the Colt Patent Firearms Co. Its reliable percussion revolvers had been the most popular military sidearms during the conflict. Colt produced around 380,000 cap-and-ball revolvers during the war years.

The introduction of metallic-cartridge revolvers by Colt and others was slowed by the fact that Smith & Wesson owned the Rollin White patent on a cylinder bored through end-to-end, which was a basic feature of most effective cartridge revolvers. Accordingly, S&W had more or less of a monopoly on the cartridge-revolver field through the 1850s and 1860s. When the patent expired, the field was open for Colt and others to enter the cartridge-revolver market.

Colt had the tooling in place for production of its percussion revolvers, along with a stock of unused parts. There was also considerable interest in adapting percussion revolvers to fire the new metallic-cartridge ammunition. Colt developed a series of designs that could be used to convert an existing percussion gun to a cartridge revolver.

The various conversion systems used by Colt are known as the Thuer, followed by the Richards and finally the Richards-Mason. The most obvious changes involved various methods of replacing the percussion cylinder and hammer with parts designed for cartridges.

All Colt revolvers produced with these systems have come to be called “Cartridge Conversions” by collectors, although this is not entirely correct. Indeed, some existing percussion revolvers were converted to fire cartridges, but many of these guns were newly manufactured. It’s interesting to note that they were made and sold by Colt at the same time the firm was making new revolvers specifically designed for cartridges, such as the famous Single Action Army.

A number of factors combine to make the Colt “conversions” popular with collectors. They were all produced during the colorful 1870s and have a good association with the Old West, relatively few were made compared to many other models, and the variety of conversion techniques applied to a number of different models and configurations resulted in a field rich with variations to be collected and studied.

While externally similar to a standard Colt 1860 Army cap-and-ball revolver (inset, l.), the gun being discussed is a breech-loading, .44-cal., center-fire, 1860 Army Model Richards-pattern, metallic-cartridge revolver (inset, r.). It was not a conversion, having been originally manufactured to fire cartridges as shown by its low serial number.

This Colt 1860 Richards is in NRA Antique Very Good condition with generally crisp metal, good remainders of original bright bluing in protected areas and faint case colors still visible on the frame. It has strong markings, including the rolled cylinder scene showing a naval engagement that is often lost on heavily worn examples.

The one-piece wood grips show significant wear with some original finish remaining. Its value to a collector is probably in the $2,500 to $5,000 range. Even heavily worn, cut-barrel or poorly refinished examples seldom can be found for less than $1,000, while the very few that are found in exceptional condition can bring more than $20,000.

-Jim Supica

Originally published February 2007.

Latest

Icarry Diamondback Sdr Galco 1
Icarry Diamondback Sdr Galco 1

I Carry: Diamondback SDR in a Galco Hornet Holster

For our latest "I Carry" episode above, we paired the six-round Diamondback SDR DA/SA snubnose revolver with a simple leather holster from Galco, along with one of the latest EDC flashlights from Streamlight.

The Armed Citizen® May 8, 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.

Creating the Ideal First-Time Shooting Experience

That first time behind a trigger can shape a newcomer’s attitude towards firearms. Here are five ways to make the experience a success.

Henry Repeating Arms Founder & CEO Honored as Law Enforcement Supporter of the Year

Henry Repeating Arms founder and CEO Anthony Imperato has been named Law Enforcement Supporter of the Year by New York State Fraternal Order of Police Memorial Lodge 100.

New For 2026: TriStar Arms APOC Pro

The new APOC Pro takes the original TriStar Arms APOC pistol design introduced in 2025 and makes it optics- and suppressor-ready.

7 New Over-Under Shotguns for 2026

Ever since the development of the iconic Browning Superposed shotgun in the early 1930s, the concept of an over-under shotgun has remained popular not just with American shooters but shotgunners the world over.

Interests



Get the best of American Rifleman delivered to your inbox.