
Smith & Wesson Model 642 Duty Line Revolver, Tuned 9mm J-Frame No Lock | TK Custom
Smith & Wesson Model 642 Duty Line Revolver, Tuned 9mm J-Frame No Lock | TK Custom
The Smith & Wesson 642 Duty Line Revolver is a lightweight, snag-free 9mm J-Frame designed for concealed carry and tuned exclusively by TK Custom. This revolver is built on the proven S&W 642 platform and offered without the internal lock, giving shooters a dependable everyday carry revolver with enhanced performance and reliability.
Each revolver receives TK Custom’s Performance Action Job, which smooths the trigger pull, polishes critical engagement points, and upgrades key springs for optimal function. The result is a consistent 9 lb double-action trigger with a clean, crisp return. Providing superior control, confidence, and precision in every defensive or range scenario.
Key Features
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Availability: Ships within 21 business days or less
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RECHAMBERED TO 9MM: Cylinder is CNC machined and reamed to accept 9mm moon clips. You can still load .38 Special individually. 9mm requires clips for ignition and ejection.
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PERFORMANCE ACTION JOB PACKAGE
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Gunsmith: Each revolver is tuned and inspected by Master Gunsmith Eli Johnson for proper timing, reliable ignition, and a smooth, consistent, flawless double-action trigger.
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ACCESSORIES: Clip Draw Holster, QTY: 10 9mm Moon Clips, TK Custom soft case, gunsmith mat, microfiber towel, and a Moon Clip Unloading Tool.
Spec Ops Profile
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Performance Action Job: Critical contact surfaces stoned and Polished,
extended cylinder release for faster reloads, reduced power firing pin spring, reduced power mainspring for smoother pull, 10lb rebound spring for faster reset, aluminum strain screw retainer, crane alignment inspected and corrected, endshake eliminated, polished internal radiuses for reduced friction, barrel clock inspected and corrected if needed.
- Caliber: 9mm
- Capacity: 5 Rounds
- Barrel: 1.88 inches
- Frame: Aluminum J-Frame
- Action: Performance Action Job Tuned to 9LB
- Weight: 14.4 oz
- Optic Ready: No
- Model: S&W 642 (No Lock)
- Trigger Pull: 9LB Double Action
*Tuned in the USA. Duty proven. Ready to carry.*
Free Shipping on orders over $250.00 in the USA only!
Smaller orders less than $250.00 are $9.95 for shipping.
No Free Return Shipping with Labor
No International Shipping, except to Canada.
$35.00
Canada - Priority Mail / NO Tracking Out side of USA

FREQUENTLY ASKED QUESTIONS
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Federal or Remington & others makes works the best with the .025 thick Full Moonclips, which fit all the .38/357 standard moonclip. They allow the cartridges to have some movement or wiggle so that they will fall right into the chambers once properly aligned. Winchester brass does not work at all as the groove width is too tight/small.
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Use this text block to discuss some commonly asked questions like shipping and returns, sizing, warranties, or product and company details.
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There is no SAAMI specifications for the extractor groove and each manufacturer makes them as they want. The following list gives you a great example. This is why the diameter size of the brass is critical to proper loading, unloading and fitment. Cartridge diameter too big and moonclip too small causes the moonclip to bend. The cartridge should rotate within their respective place and wobble slightly when all cartridges are loaded.
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If you are unsure about how to use moon clips for your revolver, or wondering which moon clip to use, call us. See the Contact menu tab.

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