The Ruger GP100 Match Champion is a .357 Magnum double/single-action revolver with a 4.2-inch barrel and satin stainless finish. It weighs 40 oz (about 3.875 lbs) and holds 6 rounds. The stainless steel frame handles regular use without corroding, and the overall 9.5-inch length keeps it manageable as a carry or range gun. 
 

Key Specifications 

• Model: GP100 
• Manufacturer: Ruger 
• Caliber: .357 Magnum 
• Barrel Length: 4.2 inches 
• Overall Length: 9.5 inches 
• Weight: 40 oz (approximately 3.875 lbs) 
• Capacity: 6 rounds 
• Finish: Satin Stainless 
• Action Type: Double/Single Action 
• Sights: HiViz LiteWave Fiber Optic Front / Adjustable Rear 
   

Features 

• HiViz LiteWave fiber optic front sight pairs with an adjustable rear, giving faster target acquisition across different lighting conditions. 
• Hogue Monogrip provides a secure hold and absorbs some of the recoil from full-power .357 loads. 
• Also accepts .38 Special, which makes it more economical for practice. 
• Double/single action lets you choose firing mode to suit the situation.

Sentiment around the GP100 Match Champion 4.2" in satin stainless is consistently positive, with a few recurring themes across reviews and forum discussions.

Build quality is the most praised aspect. Owners repeatedly note how solid the stainless frame feels, and many describe it as a gun that inspires confidence before a shot is even fired. The fit and finish on the Match Champion variant tend to be tighter than standard GP100 models.

Accuracy draws strong marks, particularly when paired with quality ammunition. The adjustable rear sight combined with the fiber optic front makes grouping shots repeatable, and competitive shooters appreciate that the sights are tunable rather than fixed.

Trigger feel gets positive mentions from most reviewers, both in single-action and double-action modes. The weight of the gun noticeably smooths out recoil when shooting .357 Magnum, which keeps it comfortable over longer range sessions.

Versatility comes up often — the ability to run .38 Special for casual practice and .357 Magnum when it matters makes ownership practical across different use cases.

Comparisons to Smith & Wesson revolvers are common. Most users place the GP100 Match Champion as competitive with, or ahead of, equivalent S&W models on build quality, though some prefer the S&W trigger in double-action mode. The satin stainless finish gets good marks for looks, though a minority would prefer a blued option.

Overall, the GP100 Match Champion is well regarded as a serious .357 revolver at a fair price for the quality delivered.