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S&W Model 642

Smith & Wesson · Revolver · DAO · 1.88″ Barrel

Caliber: .38 Special

Optic mount: S&W J-Frame Grip

Effective Range: Close quarters (~0–50 yd)

Updated

Seen on screen

We note what each gun ran on screen — iron sights, or the optics and lights it carried. Where we stock a match (or its current successor), expand the row for the product and its price. Everything that fits this firearm is in the full lists below.

Compatible Optics

The S&W Model 642 isn't factory optics-ready: it has no slide cut or rail to mount a sight directly, so there's nothing to fit. (Aftermarket gunsmithing can add a mount; we only list factory-fit options.)

Compatible Lasers

(1)

1 laser that mount on the S&W Model 642. Lasers are situational — an IR aiming laser or illuminator earns its place with night vision (it does what a red dot can't), and a visible laser is a real aiming aid on a carry gun with no optic, though largely redundant once you mount a dot. Tagged by the role each fills, not graded.

1 of 1 lasers

  • Crimson Trace LaserGrips — S&W J-FrameVisible Aiming

    Red aiming · 1.2 oz

    Where to buy
    ≈ $329 MSRP

Civilian-legal units only (eye-safe IR). Fitment is the rail; whether you need one depends on your setup, so these are positioned by role rather than scored.

Related firearms

Others in the same class — each links to its own compatible-optics list.

Common questions

Is the S&W Model 642 optics-ready?
No — the S&W Model 642 isn't factory optics-ready, and it has no slide cut or rail to mount a sight directly.
What is the effective range of the S&W Model 642?
In .38 Special, the S&W Model 642's typical effective range is Close quarters (~0–50 yd).