Smith & Wesson M&P 5.7 Optic Ready | MFG# 14078

The Smith & Wesson M&P 5.7 (MFG# 14078) is a full-size, optics-ready semi-automatic pistol chambered for the 5.7x28mm cartridge. It features a 5.0″ stainless steel threaded barrel with Armornite finish on the slide, a slim textured Flat Dark Earth polymer frame, and ships with two 22-round magazines for extended range sessions. The optics-ready slide accepts many micro red-dot footprints; a compact optic such as the Holosun 507K pairs well with this platform while staying well under $1,000.

In real-world use the M&P 5.7 fits roles including precision range work where a flat-shooting cartridge is desired, and target shooting where high magazine capacity and a flat-face trigger aid repeatability. It is not configured with a manual thumb safety and includes ambidextrous controls for broader usability.

Product Specifications

• The manufacturer is Smith & Wesson.
• The model is M&P 5.7 and the manufacturer part number is 14078.
• The cartridge is 5.7x28mm.
• The barrel measures 5.0 inches and is stainless steel.
• The barrel finish is Black Armornite and the slide finish is the same Armornite coating.
• The slide material is Stainless Steel and the frame material is Polymer.
• The frame color/finish is Flat Dark Earth Cerakote with a black slide.
• The capacity is 22+1 rounds and it includes 2 x 22-round removable magazines.
• The muzzle is threaded (1/2″-28 tpi) and ships with a thread protector.
• The overall length is 8.50 inches and the overall height is 5.25 inches.
• The unloaded weight is 26.7 oz (ounces).
• The rifling rate of twist is 1:9″.
• The pistol is optics ready with an optics-cut slide and features a Picatinny-style accessory rail.
• UPC: 022188895988.

The M&P 5.7 balances a slim, ergonomic grip with a high-capacity magazine and a flat-face trigger for consistent finger placement. Its Tempo locked-breech, gas-operated barrel design delays camming until after the bullet passes the gas port for predictable cycling. The optics-ready slide and threaded muzzle make it a flexible platform for adding a micro red dot and a suppressor-compatible setup if desired.

For shooters seeking a full-size 5.7x28mm pistol that emphasizes controllability, repeatable triggers, and modern accessory compatibility, this M&P 5.7 variant delivers a clear, practical package suitable for precision range work and target shooting. The included two 22-round magazines reduce reload frequency during extended sessions while the slim grip profile supports comfortable handling for sustained use.