
Smith & Wesson Extended Revolver Cylinder Release KLN Frame *BLUE*
SKU TKC-ECR-BLUE
TK Custom Blue Extended Cylinder Release – Faster Reloads for S&W Revolvers
Speed meets precision with TK Custom’s Blue Extended Cylinder Release—designed to elevate your reload times and thumb control on any Smith & Wesson K, L, N, or X Frame revolver. Built for revolver shooters who demand rapid response and rock-solid engagement, this upgrade features a prominent .8" checkered face for quick, positive activation every single time.
Ideal for competitive shooters, personal defense setups, and law enforcement use, the enlarged surface gives you the edge when it matters most. Whether you're transitioning targets, clearing the gun under pressure, or reloading mid-match—this drop-in part delivers confidence with every press. No gunsmithing. No fitting. Just plug, play, and reload like a pro.
Built from stainless steel and finished in a bold blue matte coat, it doesn’t just feel right—it looks the part too. This is one of our top-selling upgrades for good reason: shooters notice the difference the first time they touch it.
Key Features
-
Availability: Ships within 2–3 business days
-
FASTER CYLINDER ACCESS – Prominent .8" checkered surface area delivers lightning-fast reloads when seconds matter.
-
DROPS RIGHT IN – Installs in minutes with no gunsmithing required. Ready to run right out of the box.
-
BUILT FOR S&W REVOLVERS – Compatible with Smith & Wesson K, L, N, and X Frame revolvers.
-
PERFECT FOR COMPETITION & DUTY – Enhances reload speed and mechanical control in high-stress conditions.
Why Shooters Choose TK Custom
TK Custom is the trusted source for revolver performance parts that are track-tested and carry-proven. From competition timers to tactical reloads, our parts are engineered with feedback from the best shooters in the country—and manufactured here in the USA.
We don’t sell gimmicks. We machine real upgrades that help you shoot faster, smoother, and with total control. Our Revolver Extended Cylinder Releases are trusted on the range and in the field. That’s why serious shooters choose TK Custom.
Spec Ops Profile
- Part Name: Blue Extended Cylinder Release
- Finish: Matte Blue Stainless Steel
- Length: .8"
- Compatibility: Smith & Wesson K, L, N, X Frame Revolvers
- Install Type: Drop-In, No Gunsmithing Required
*Engineered for speed. Trusted for reliability. Built by TK Custom.*
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
-
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.
-
Use this text block to discuss some commonly asked questions like shipping and returns, sizing, warranties, or product and company details.
-
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.
-
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.

GOOGLE REVIEWS
4.9 from over 1095 reviews