The Ruger-57 is a semi-automatic pistol chambered in 5.7x28mm, a caliber that combines high velocity with low recoil in a package that holds more rounds than most similarly-sized handguns. The gun ships with two steel magazines, each holding 20 rounds, and a standard capacity configuration of 10+1 rounds. At 24.5 oz with a 4.94-inch barrel, it's on the larger side for a carry gun but handles well at the range. 
 

Key Specifications 

• Manufacturer: Ruger 
• Model: Ruger-57 
• Caliber: 5.7x28mm 
• Action Type: Semi-Automatic 
• Capacity: 10+1 rounds (includes two steel magazines) 
• Barrel Length: 4.94 inches 
• Overall Length: 8.65 inches 
• Weight: 24.5 oz (1.53 lbs) 
• Finish: Black Nitride 
   

Detailed Features 

The polymer grip is textured for a secure hold without aggressive checkering that wears on skin. The fiber optic front sight aids quick acquisition in good light, and the adjustable rear sight lets shooters zero it to their preference. Ruger's Secure Action fire control uses an internal hammer mechanism with a short, crisp trigger. The slide is through-hardened alloy steel with lightening cuts, and the barrel has a black nitride finish for wear resistance. A Picatinny-style rail under the dust cover accepts lights and lasers. 
 

Target Audience 

The Ruger-57 suits shooters who want the 5.7x28mm round in a US-made pistol at a lower price point than the FN Five-seveN. It also works for anyone who finds 9mm recoil uncomfortable but wants meaningful terminal performance. 
 

Usage Scenarios 

• Home defense: fast follow-up shots and high capacity are practical advantages. 
• Range use: the adjustable sights and low recoil make it easy to practice accuracy drills. 
• Concealed carry: the lightweight design is manageable, though the longer grip requires careful holster selection.

User discussions about the Ruger-57 Semi-Auto Pistol cover several recurring themes.

1. The 5.7x28mm cartridge is a talking point on its own. Users highlight its low recoil and high velocity as genuine advantages, and many who've fired it come away impressed with how flat the gun shoots.

2. Accuracy at longer handgun distances comes up frequently as a positive. The caliber's flat trajectory makes 50-yard shots more achievable than with most pistols.

3. The 20-round magazine capacity is cited often as a meaningful advantage for both competition and defensive use.

4. Ergonomics generally get good marks. The grip is comfortable for most hand sizes, though some users note it's not a universal fit.

5. Pricing generates mixed reactions. Some buyers consider it reasonable given the platform; others compare it unfavorably to 9mm pistols that cost less and have cheaper ammunition.

6. Ammunition availability is the most consistent concern in user discussions. 5.7x28mm is harder to find on store shelves than 9mm or .45 ACP, and the per-round cost for practice is higher. This affects how satisfied users are over the long term.

7. Aftermarket support is thinner than for more established platforms. Users who want custom parts or modifications find fewer options available.

8. Reliability is generally reported as good, though a small number of users mention issues with specific ammunition types and question long-term durability under heavy round counts.