An action is the mechanism between a gun’s trigger and firing pin that handles how a firearm loads, locks, fires, and extracts cartridges. While there are multiple action categories, most pistols tend to be either single- or double-action or fall somewhere in between. This guide will break down their differences to help you determine which will be more suitable for you.

A Guide to Single-Action vs. Double-Action Handguns

Single-Action

In a single-action firearm, pulling the trigger leads to one function—it causes the hammer to drop. This design requires the hammer to be manually cocked for the gun to discharge a round. When the piece is in a cocked position, less pressure is needed to pull the trigger. This generally leads to increased shooter accuracy. However, with less force behind it, the bullet will travel a shorter distance. 

While they come in various forms, most single-action guns have simpler designs. This means there are fewer components capable of malfunctioning. Some single-actions are also available in semi-automatic styles. These require the user to manually rack the slide to cock the hammer on the first shot. The recoil cycles the round into the chamber, leaving it cocked for subsequent shots. Practice disengaging the hammer to increase gun safety.

Double-Action

When the trigger on a double-action firearm is pulled, the hammer cocks back and releases, causing the gun to discharge. Since the shooter doesn’t have to manually cock this part, extra force is required to pull the trigger. This can cause accuracy to suffer, but the bullet will travel a longer distance. Many people prefer this design because they can continue shooting as long as there is ammunition in the magazine. Hammerless designs prevent this component from catching on clothes or items in purses when carrying concealed.

Many double-action revolvers have a single-action feature that allows the user to manually cock the hammer to reduce trigger distance and improve shooting accuracy. There are also duel double- and single-action handguns. However, these have the typical long trigger distance for the first shot, while the distance is halved on subsequent pulls. Making sure to decock them immediately after firing is a crucial safety point for gun owners.

If you’re in the market for a single- or double-action firearm, turn to Shooter's Firearms & Indoor Range in Columbia, IL. They are one of the largest-stocking gun dealers in Monroe County and Southern Illinois, with a vast selection of new and used pistols and revolvers to choose from. They also handle FFL gun transfers to and from state residents. Call (618) 281-6393 to have your questions answered by a friendly team member, and visit them online to learn about upcoming training classes and shooting competitions.