The Cimarron 1858 New Model Army is a single-action .38 Special revolver with a 7.37-inch blued barrel, blued cylinder, and walnut grip. It's a reproduction of the 19th-century Remington 1858 frame -- not a Colt SAA profile. At 2.70 lbs and 10.88 inches overall, it's a full-size revolver designed for authentic SA shooting. 
 

Key Specifications 

• Brand: Cimarron 
• Model Name: 1858 New Model Army 
• Caliber: .38 Special 
• Action: Single Action (SAO) 
• Capacity: 6 rounds 
• Barrel Length: 7.37 inches 
• Overall Length: 10.88 inches 
• Weight: 2.70 lbs 
• Sights: Dovetail Front / Notch Rear 
• Grip Material: Walnut 
• Finish: Blued Barrel and Cylinder 
• Condition: New in Box 
   

Detailed Features 

 
The 1858 frame pattern has a top strap over the cylinder, which makes it mechanically stiffer than the open-top Colt Navy design. That structural difference is why the 1858 became preferred over the older Colt design as metallic cartridge conversions became common in the 1870s. 
 
The walnut grip follows the original profile -- slightly flared at the base, which positions the hand consistently for single-action cocking. Dovetail front sight allows for windage adjustment. The 7.37-inch barrel gives the .38 Special good velocity and a long sight radius for accurate fire at range. 
 
Being chambered in .38 Special rather than cap-and-ball means it uses modern rimfire ammunition -- no percussion caps, no powder measure, and no patched balls. 
 

Usage 

• Cowboy action shooting: the 1858 frame is popular in this format; .38 Special fits the eligibility rules. 
• Collecting and display: the blued finish and walnut grip are true to the period. 
• Range shooting: the long barrel and SA trigger reward deliberate technique.

The Cimarron 1858 Classic gets consistently positive reviews from buyers who came specifically for the historical design, with a few practical trade-off notes.

Build quality and visual authenticity draw the most praise -- the blued finish and walnut grip are well executed, and buyers note the gun looks and feels period-correct. Accuracy with the 7.37-inch barrel and dovetail sight gets good marks at range distances. The .38 Special chambering is cited as a practical advantage over muzzle-loading cap-and-ball versions.

The main practical criticism is the SA mechanism: cocking the hammer manually before each shot slows follow-up fire, which is by design but surprises buyers who haven't shot SA revolvers. Weight at 2.70 lbs is higher than compact carry revolvers, which is expected for a full-size historical profile but worth noting for buyers who intend to carry it. A few reviews mention the gun is bulkier than expected for extended carry.