Description
The Smith & Wesson M&P 5.7 5″ Threaded Optic Ready 5.7×28 22+1 is a full-size semi-auto built for shooters who want flat recoil, high capacity, and the ability to run a suppressor or compensator. Chambered in 5.7x28mm, it uses S&W’s gas-operated TEMPO barrel system to keep muzzle rise minimal and follow-up shots fast. The 5.0″ barrel is threaded (1/2×28) and the slide is cut for popular optics. Two 22-round magazines are included. At $662.05, this is a serious option for duty, range, or home defense.
| Manufacturer | Smith & Wesson |
|---|---|
| Model | M&P 5.7 |
| Material | Stainless steel barrel, polymer frame (per manufacturer specs) |
| Compatibility | 5.7x28mm ammunition, optics with RMR footprint (per manufacturer specs) |
| Finish | Black Armornite barrel, black polymer frame |
| Weight | 26.6 oz (unloaded, per manufacturer specs) |
| Condition | New |
Key Features
- Gas-Operated TEMPO Barrel System – Why it matters: This delayed-blowback design reduces felt recoil and keeps the muzzle flat, making rapid fire more controllable than straight-blowback 5.7 pistols.
- Threaded Barrel (1/2×28) – Why it matters: Ready for suppressors or compensators out of the box; the barrel is Armornite-coated for corrosion resistance.
- Optic-Ready Slide – Why it matters: Cut for RMR- and Holosun-style red dots, with a cover plate included. No need for an adapter plate.
- 22+1 Round Capacity – Why it matters: Two 22-round magazines give you 45 rounds on tap. That’s more capacity than most duty 9mms in a lighter caliber.
- Slim, Textured Polymer Grip – Why it matters: The 1.1″ width and aggressive stippling let you maintain purchase even with sweaty hands. The 1913 rail accepts lights or lasers.
Who It’s For
This pistol is for shooters who want the low recoil and high velocity of 5.7x28mm in a full-size platform that’s optics-ready and suppressor-ready. It fits duty carriers who need 22+1 capacity, competition shooters who want fast splits, and home defense owners who prioritize controllability. It’s also a solid choice for shooters with hand strength issues who still want a centerfire defensive pistol.
Pros & Cons
- Pro: Gas-operated system delivers noticeably softer recoil than blowback 5.7 pistols.
- Pro: Threaded barrel and optic cut included at no extra cost.
- Pro: Price under $700 is competitive for a duty-ready 5.7 with these features.
- Con: The trigger has a long reset compared to aftermarket triggers; some shooters will want to swap it out.
Comparison
| Feature | Smith & Wesson M&P 5.7 | Ruger-5.7 | FN 5.7 MRD |
|---|---|---|---|
| Caliber | 5.7x28mm | 5.7x28mm | 5.7x28mm |
| Barrel Length | 5.0″ threaded | 4.94″ threaded | 5.0″ threaded |
| Capacity | 22+1 | 20+1 | 20+1 |
| Optic Ready | Yes (RMR cut) | Yes (RMR cut) | Yes (RMR cut) |
| Operating System | Gas-operated TEMPO | Blowback | Delayed blowback |
| Weight (unloaded) | 26.6 oz | 26.2 oz | 25.6 oz |
| Price | $662.05 | $699.00 | $1,199.00 |
FAQ
Does the Smith & Wesson M&P 5.7 come with suppressor-height sights?
Yes, the factory sights are tall enough to co-witness with most red dot optics when mounted directly to the slide. The front sight is a green fiber optic, and the rear is black serrated.
What thread pitch is the barrel?
The barrel is threaded 1/2×28, which is the standard for 9mm suppressors and compensators. Most 5.7 suppressors use this pitch, but always verify with your can’s specs.
Can I use 5.7x28mm ammunition from different manufacturers?
Yes, the M&P 5.7 cycles factory loads from FN, Federal, Speer, and others. Stick to SAAMI-spec ammunition. Handloads may cause cycling issues due to the gas system’s tuning.
Is this pistol legal in all 50 states?
It ships with two 22-round magazines, so it is restricted in states with capacity limits (e.g., California, New York, Massachusetts). We ship to all states where the pistol and magazines comply with local law.
Does the optic-ready cut fit any red dot?
The slide is cut for the RMR footprint, which includes Trijicon RMR, Holosun 407C/507C/508T, and similar. It does not fit the Delta Point Pro or ACRO footprint without an adapter plate.
According to Smith & Wesson, the M&P 5.7 uses a gas-operated system that reduces slide velocity by 40% compared to blowback designs. This translates to a flatter shooting experience and longer service life. Over 200,000 units of the M&P series have been sold since 2020, making it one of the most popular duty pistols in the US.
Last updated: April 2026
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