Smith & Wesson M&P 5.7 5.7x28mm
Model: 13347
Smith & Wesson M&P 5.7 5.7x28mm
Model: 13347
Full Specifications
About This Firearm
The Smith & Wesson M&P 5.7 is an internally hammer-fired 5.7x28mm pistol built for home defense and suppressed range work. It has an MSRP of $699, and its Tempo barrel is gas operated and locked breech, so the barrel stays shut until the bullet has passed a gas port instead of unlocking on recoil alone.
The muzzle leaves the factory threaded 1/2x28 under a protector, the slide is cut for an optic on the same plate system as the rest of the M&P line, and two 22-round magazines come in the box. Sights are drift-adjustable metal, the thumb safety works the same from either side, and the frame has a Picatinny-style rail. The barrel is 5 inches of stainless under Armornite with a 1:9 twist, and at 26.7 oz it carries 2.2 oz more than the Ruger, which works in its favor on a cartridge that barely moves the gun.
If you're cross-shopping, the Ruger-57 undercuts it at an MSRP of $549 but leaves both the optic plate and the muzzle threading to the buyer, and it holds two rounds fewer. The FN Five-seveN MK3 MRD has an MSRP of $1,509 with an adjustable rear sight and a cold hammer-forged barrel, but 20 rounds and no muzzle thread.
Best For
Strengths & Limitations
- Smith & Wesson builds it in the United States, with the slide and barrel both stainless.
- The optic plates are the ones already used across the M&P family, so the dot and the plate are catalog parts.
- The grip stands 5.25 inches, the shortest of the group, which helps when carrying it.
- It is the heavy one of the mainstream 5.7 pistols, which helps at a bench and not on a belt.
- An unusual red dot footprint still means sourcing the right plate before anything mounts.
- A full-size grip and an 8.5-inch overall length rule out pocket or ankle use entirely.
Category Rankings
How the Smith & Wesson M&P 5.7 5.7x28mm ranks among full-size 5.7x28mm handguns.
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PSA Rock 5.7 5.7x28mm
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Tisas PX-5.7 FO 5.7x28mm
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FN Five-seveN MK3 MRD 5.7x28mm
FN America
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Ruger-57 5.7x28mm
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Diamondback DBX 5.7x28mm
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Frequently Asked Questions
What is the Tempo barrel system?
A gas-operated, locked-breech action. The barrel does not cam open until the bullet passes a gas port, which suits the pressure 5.7x28mm runs at.
Is it hammer-fired or striker-fired?
Internal hammer-fired with a single-action break, which is unusual in a polymer-framed pistol and is part of why the trigger feels different from a striker gun's.
What thread pitch is the muzzle?
1/2x28, the common pitch for 5.7 and rimfire cans, so most small-bore suppressors thread straight on.
