The Colt Single Action Army Peacemaker in .357 MAG is a 6-round single-action revolver with a 4.75-inch blued barrel and a color case-hardened steel frame. This is the same basic design Colt has manufactured since 1873. 
 

Key Specifications 

• Brand: Colt Mfg 
• Model Name: Single Action Army Peacemaker 
• Caliber: .357 MAG 
• Action: Single Action Only (SAO) 
• Capacity: 6 rounds 
• Barrel Length: 4.75 inches 
• Overall Length: 10.25 inches 
• Weight: 2.5 lbs (40 oz) 
• Sights: Blade Front (Fixed) 
• Grip Material: Black Composite Double Eagle 
   

Detailed Features 

The single-action mechanism requires cocking the hammer manually before each shot. The color case-hardened frame finish is both protective and visually distinctive. The exposed hammer allows the shooter to cock the gun by hand for each shot, which is the traditional SAA manual of arms. 
 
The blued 4.75-inch barrel is the shortest standard barrel length for the SAA configuration, making this the most compact of the three standard barrel options. The fixed blade front sight gives a clean sight picture for typical single-action revolver work.

The Colt Peacemaker .357 MAG in the 4.75-inch configuration draws the same general appreciation as other SAA variants, with some specific notes on the barrel length.

The classic design and historical connection to the original Peacemaker are consistently cited. Most owners are buying this because of what the SAA represents in American firearms history, not because they need the most modern revolver available.

Build quality and the smooth action are standard Colt praise points that recur across reviews.

The 4.75-inch barrel is described as the more practical carry length compared to the 5.5 or 7.5-inch options, though the SAA is not a typical carry gun for most buyers.

Shooters appreciate that it handles both .357 Magnum and .38 Special, with .38 Special being the common choice for high-volume range sessions.

Price is debated -- the Colt SAA is more expensive than comparable single-action revolvers from other manufacturers, and buyers weigh the heritage value against the cost difference.

Parts availability and the vintage nature of the design come up occasionally for those thinking about long-term maintenance.

The nostalgia element is real. Many owners connect the gun to family, western films, or American history, and that emotional dimension is part of why the SAA retains its appeal alongside its function.