Make: Smith & Wesson

Model: 25-13 Mountain Gun

Serial Number: CHZ5231

Year of Manufacture: 2005

Caliber: .45 Colt

Action Type: Double / Single Action, Swing-Out Cylinder Revolver

Markings: The left side of the barrel is marked "45 Colt CTG." The right side of the barrel is marked "Mountain Gun." The crane cut is marked "25-13" and "CHZ5231."

Barrel Length: 4”

Sights / Optics: The front sight is a black serrated ramped blade pinned to the barrel. The rear sight is a micrometer-click adjustable square-notch sight.

Stock Configuration & Condition: The revolver has factory smooth redwood grips featuring combat-style finger grooves. The grips are in excellent condition, with no significant wear.

Type of Finish: Blued

Finish Originality: Original

Bore Condition: The bore is bright with strong rifling. In this writer’s opinion, the bore rates 10/10.

Overall Condition: This revolver retains about 99% of its original blued finish. There is a very thin turn line on the cylinder, but otherwise, the revolver remains in near-new condition. The screw heads are sharp, and the markings remain crisp and well-defined.

Mechanics: The action functions correctly. The cylinder locks up tightly with minimal play. The double-action trigger is smooth, and the single-action break is crisp. This revolver appears to be unfired outside of factory testing. We did not fire this revolver. As with all used firearms, a thorough cleaning may be necessary to meet your maintenance requirements.

Box, Paperwork & Accessories: Includes the original box, factory paperwork, envelope, and keys for the internal safety lock.

Our Assessment:

The Smith & Wesson Model 25-13 Mountain Gun is a lightweight and powerful revolver chambered in .45 Colt, designed for durability and portability. The 4-inch barrel and tuned action make it an ideal revolver for field use, personal defense, or hunting applications.

This particular example is in pristine condition, appearing unfired outside of factory testing. It retains 99% of its original blued finish, and the bore is flawless. The smooth redwood grips with combat-style finger grooves add a comfortable, ergonomic feel.

For collectors, revolver enthusiasts, or those seeking a high-quality .45 Colt revolver, this Smith & Wesson Model 25-13 Mountain Gun is a rare opportunity to own a factory-original example in near-new condition, complete with its box and accessories.