The Colt Model of 1892 served as the replacement for the 1873. While definitely not as aesthetically pleasing as the 1873 SAA, it still featured a number of critical improvements. Most notable was the swing out cylinder, which facilitated faster reloading.
The biggest limitation to the 1892 was its caliber – the .38 Long Colt. While the .38 LC offered less recoil, it also offered less firepower. Many American soldiers find it underpowered in combat, and as a result, the US Army actually began issuing 1873 SAAs again with their .45 LC cartridge for a time until more powerful guns were adopted later.