Smith & Wesson M&P 5.7 5.7x28mm 5 in Threaded Optic Ready

About this product

What is the Smith & Wesson M&P 5.7 5.7x28mm 5 in Threaded Optic Ready? It's a full-size polymer-frame pistol chambered in 5.7x28mm with a 5-inch threaded barrel and optics-ready slide. This platform uses Smith & Wesson's proprietary TEMPO gas-operated locked-breech system and ships with two 22-round magazines. The design prioritizes high-capacity performance while maintaining the slim profile that makes the 5.7x28mm cartridge appealing for both defensive and range applications.

What is the Smith & Wesson M&P 5.7 used for?

The M&P 5.7 serves as a high-capacity defensive pistol and range platform optimized for the 5.7x28mm cartridge. Its 22-round magazine capacity provides nearly double the firepower of most 9mm service pistols while maintaining manageable recoil characteristics. The threaded barrel allows for suppressor mounting, making it suitable for hearing-safe training, while the optics-ready slide accommodates micro red dots for faster target acquisition.

How does the Smith & Wesson M&P 5.7 compare to the FN Five-seveN?

The M&P 5.7 offers superior aftermarket optic compatibility and a more modern ergonomic package compared to the FN Five-seveN. While the FN Five-seveN has proven reliability over its 25-year service history, the M&P 5.7's SHIELD/RMSc optic cut requires no adapter plates for popular micro red dots, and its 26.7-ounce weight is 3.2 ounces lighter than the FN platform. The M&P's textured grip and ambidextrous controls provide better handling for most shooters, though the FN maintains a slight edge in proven long-term durability.

What does it weigh and what are the dimensions?

The M&P 5.7 weighs 26.7 ounces unloaded and measures 8.65 inches in overall length with a 5-inch barrel. The slide width measures 1.2 inches at its widest point, while the grip circumference measures 5.7 inches around the backstrap. These dimensions make it comparable in size to a full-size 9mm service pistol while accommodating nearly double the magazine capacity.

Who is this NOT for?

This pistol is not ideal for concealed carry practitioners or those seeking maximum ammunition compatibility. The 5.7x28mm cartridge costs approximately $0.60 per round compared to $0.25 for 9mm, making sustained training economically prohibitive for some shooters. The 8.65-inch overall length and 1.2-inch slide width make concealment challenging compared to compact options like our the Stevens 334 Rifle in .308 Win configuration.

What's in the box?

The package includes the pistol itself, two 22-round steel-reinforced polymer magazines, a threaded barrel protector, and a cable lock. Smith & Wesson provides the standard operator's manual and warranty documentation, but notably excludes both optic mounting screws and a cleaning kit. You'll need to source appropriate Torx bits for sight adjustment and a 1/2-28 thread pitch compatible suppressor or compensator separately.

Is the Smith & Wesson M&P 5.7 worth it at $662.99?

At $662.99, the M&P 5.7 represents solid value for shooters committed to the 5.7x28mm platform who want modern features. The optics-ready slide alone would cost $150-$200 to mill on an older platform, while the threaded barrel adds another $200 value compared to non-threaded variants. When you consider that competing 5.7 platforms like the Ruger-57 start at $589 without threading or optic readiness, the $73 premium brings meaningful functionality. For hunters considering alternative platforms, our Stevens 555 Sporting O/U in .410 bore offers completely different capabilities at a similar price point.