
Smith & Wesson J-Frame Extended Revolver Cylinder Release *Stainless Steel*
SKU TKC-ECR
TK Custom J-Frame Stainless Extended Cylinder Release – Compact Speed, Maximum Control
Designed specifically for Smith & Wesson J-Frame revolvers, this .5" Stainless Extended Cylinder Release is compact, responsive, and precision-engineered to improve your reloads without compromising concealability. Perfect for carry revolvers and backup guns, this release gives you better control and faster ejection in a low-profile package.
The reduced length makes it ideal for tight holster fits while still delivering a checkered, thumb-positive face for quick access. If you carry a J-Frame daily or use one in competition, this is one of the easiest and most functional upgrades you can make—no gunsmithing required.
Built from matte stainless steel, it blends seamlessly with stainless J-Frames for a clean, purpose-built look that adds confidence and control the moment you install it.
Key Features
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Availability: Ships within 4 business days
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DESIGNED FOR J-FRAMES – Precision fit for Smith & Wesson J-Frame revolvers only.
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COMPACT LENGTH – Shortened .5" profile is ideal for concealed carry and reduced printing.
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FAST, CONTROLLED RELOADS – Checkered face gives you positive contact and reliable engagement.
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NO GUNSMITHING REQUIRED – Drop-in installation takes minutes with zero modifications needed.
Why Shooters Choose TK Custom
TK Custom is the leader in revolver upgrades—known for performance parts that deliver real advantages under real-world pressure. Whether you’re carrying every day or tuning your J-Frame for match-level performance, our releases are trusted because they feel right and run smooth.
Built with precision. Tuned for control. Installed with confidence. That’s why J-Frame owners trust TK Custom.
Spec Ops Profile
- Part Name: J-Frame Stainless Extended Cylinder Release
- Length: .5"
- Finish: Matte Stainless Steel
- Compatibility: Smith & Wesson J-Frame Revolvers
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Install Type: Drop-In, No Gunsmithing Required
*Quality you can see. Excellence you can feel.*
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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