Extended Cylinder Release — S&W K/L/N Frame — Long
Extended Cylinder Release — S&W K/L/N Frame — Long
A drop-in extended cylinder release for the S&W K, L, and N frame, in the long version with a larger thumb pad for faster cylinder operation. The bigger pad gives your thumb more leverage and a positive surface to push on, so the cylinder opens cleanly and quickly, even with gloves on. It is a true drop-in upgrade with no fitting required, which makes it one of the easiest improvements you can make to how the gun runs.
Why it matters: opening the cylinder happens on every reload, and the long pad puts the most surface out where your thumb naturally lands. For competition reloads against a timer, or any time you want the cylinder to pop the instant you hit it, that extra leverage makes a real difference.
Key Features
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Larger thumb pad for faster, surer cylinder release -
Better leverage, including with gloves -
True drop-in install, no fitting required -
For S&W K, L, and N frame revolvers
The long version puts the most thumb pad out where you can reach it. If you have had a release snag on a holster or clothing, look at the short version instead, which keeps a lower profile.
Installation note: this is a drop-in swap with no fitting, so most owners can install it at home with the right screwdriver.
TK Custom is one of the top destinations in the world for S&W action work, and we hold these parts to the same standard we keep on our own bench.
Fitment
Fits S&W K, L, and N frame revolvers. Choose your options on the listing.
Specs
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Fits: S&W K/L/N frame -
Profile: long (larger thumb pad) -
Install: drop-in, no fitting required -
Made in USA
Guarantee
Best fitment, quality, and durability in the industry, or your money back.
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
Extended Cylinder Release — S&W K/L/N Frame — Long
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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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