The Smith & Wesson M&P 5.7 is a semi-automatic pistol chambered in 5.7x28mm. It runs single action only and holds 22+1 rounds from a flush-fit magazine. The 5-inch barrel is threaded (1/2x28), the slide comes optic-ready from the factory, and the finish is Flat Dark Earth Cerakote over a polymer frame with slim FDE texturing. 
 

Key Specifications 

• UPC: 022188895490 
• Action: Single Action Only (SAO) 
• Barrel Length: 5 inches 
• Caliber: 5.7x28mm 
• Capacity: 22+1 rounds 
• Weight: 26.70 oz (1.67 lbs) 
• Finish: Flat Dark Earth Cerakote 
• Sights: Steel 3-Dot 
• Grip Material: Polymer (FDE Slim-textured) 
   

Detailed Features 

The 22+1 capacity reduces the need to reload during extended range sessions. The threaded barrel lets you mount a suppressor or compensator directly. The optics-ready slide accepts common red dot footprints without an adapter. Cerakote over stainless provides corrosion resistance without adding significant weight.

The M&P 5.7 FDE draws fairly consistent feedback across a few themes.

Ergonomics and grip feel get positive marks. The slim texture works for most hand sizes, and users find the controls intuitive whether they're new to the platform or switching from another M&P.

Reliability reports are generally clean -- owners describe consistent feeding and ejection across several ammunition brands. That said, 5.7x28mm availability and cost compared to 9mm remain a persistent concern, and a few users note that options at certain retailers can be limited.

The optics-ready design is well received. Most users who add a red dot stick with the setup for carry or competition. The threaded barrel is cited as a meaningful feature for those who have or plan to get a suppressor.

The caliber itself splits opinion. Proponents point to low recoil and high velocity; skeptics question terminal performance relative to conventional defensive calibers. That debate runs through nearly every forum thread about this gun.

Pricing compared to similar-capacity 9mm pistols comes up regularly. Many owners feel the feature set justifies the cost; others compare it directly to established 9mm options and consider the price premium a real factor.