.45 Colt Konverters for these .44 caliber 1851 Pietta Navy revolvers

45 Colt Navy with Kirst Conversion and Ejector

Pietta manufactures all of these reproductions of Colt 1851 Navy revolvers, but the big difference from the originals is that these are available in .44 CALIBER!

The .44 caliber Cap & Ball revolver barrel is machined with the exact same bore dimensions (.452" nominal) as the .45 Long Colt bore. Therefore the barrels of these .44 caliber Cap & Ball revolvers will accurately shoot .45 Long Colt or .45 Schofield lead bullets.

This opens up a whole new group of percussion revolvers that are easily converted to fire .45 LC centerfire cartridges. No F.F.L. paperwork is required to purchase a Kirst Konverter. All Kirst Konverters carry a lifetime "No B.S." warranty, plus they are made with pride in the good, old U.S.A.

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45 Konverter
1851 Navy .44
1851 London
1851 Deluxe

Please note that all the selected .44 caliber Pietta Navy revolvers shown here have steel frames. Never install a cartridge converter in a brass frame revolver, as they are not safe to fire cartridges in.

Kirst Konverters will convert the steel frame .44 caliber Colt Navy Cap & Ball revolvers to a five shot .45 Schofield or.45 Long Colt cartridges. NOTE: The SAAMI specification for overall length for the .45 Colt is 1.600 inch. The longest OAL that 1860 Pietta cylinder will accept is 1.58 inch. There are brands of modern Cowboy Action ammunition that have an overall length of 1.58 inch or less. Just make sure your brand of ammo will definitely fit before purchasing it.

1851 Sheriff
1851 US Marshal Deluxe

Caution: Ammunition must be loaded with lead bullets and a low-pressure, powder charge equivalent to black powder loads. Do not use the Kirst Konverter in revolvers with a brass frame (except for .22 caliber rimfire Konverters.) Be careful to never install a .45 caliber Kirst Konverter in a revolver with a .36 caliber barrel.

Adding an ejector assembly completes the conversion and makes it quick and easy to eject cases once you grind in a loading port with a Dremel rotary tool. Simple, step-by-step instructions are included with each Konverter and can also be found on our FAQ’s page or by clicking on Colt Porting Instructions.

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45 Konverter Ejector
1851 Buntline

2 Step Hands for Uberti or Pietta revolvers

two step hand front
two step hand back

This Kirst 2-Step Hand is specifically designed to improve the lock up of Uberti or Pietta percussion revolvers converted with 5 shot Kirst Cartridge Konverters. It allows the 1860 Army, including the .45 caliber 1851 Navy Model and the Dance revolver, to function smoothly and more dependably than the factory-made hand. In addition, this Kirst hand spring is stronger and less apt to fail, which is common with the factory hands.

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