The Cimarron Frontier is a single-action revolver chambered in .44-40 Win with a 5.5-inch barrel and a 6-round cylinder. It has a case-hardened frame with a blued finish and walnut grips. This is the Pre-War configuration. 
 

Key Specifications 

• Brand: Cimarron 
• Model: PP421 Frontier Pre War 
• Caliber: .44-40 Win 
• Action: Single Action 
• Barrel Length: 5.5" 
• Capacity: 6 
• Color/Finish: Case Hardened Frame / Blued 
   

Detailed Features 

• Single-action revolver in .44-40 Win 
• 5.5-inch barrel 
• 6-round cylinder 
• Case-hardened frame with blued finish 
• Walnut grips

Owners of the Cimarron Frontier appreciate the classic single-action feel and the quality of the case-hardened frame. The .44-40 Win chambering draws collectors and cowboy-action shooters who want a historically appropriate cartridge, and the Frontier delivers a faithful reproduction experience.

The walnut grips and blued finish get consistent praise for aesthetics, though some owners note the fit between frame and barrel takes close inspection to verify on individual examples. The 5.5-inch barrel is the most popular length for the platform and handles well in a holster.

Value perception is generally positive. Cimarron sits at a step up from entry-level single-action imports, and buyers who have handled both typically feel the difference. The trigger and timing on the Frontier receive good marks, though single-action triggers always vary slightly unit to unit.