TK Custom Smith & Wesson N Frame Revolver Diamond Speed Hammer Kit Matte

Name: TK Custom Smith & Wesson N Frame Revolver Diamond Speed Hammer Kit Matte
Price: 179.95 USD
Availability: InStock

$179.95

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Diamond Speed Hammer – N Frame Revolver Trigger Upgrade Kit

The TK Custom Diamond Speed Hammer Kit for N Frame revolvers is engineered to give you a lighter, faster, and more reliable double-action trigger. This complete drop-in upgrade replaces factory MIM internals with wire EDM and CNC-machined tool steel components that are heat-treated to 50 Rockwell for durability and longevity.

Expect a sub-6LB double-action pull, smoother cycling, and faster lock time — all while increasing ignition reliability across a wide range of primers. This is the exact setup trusted by USPSA revolver shooters and professional gunsmiths alike.

Includes everything you need to transform your revolver from stock to competition-ready. Gunsmith fitting may be required depending on frame tolerances.

Key Features

COMPETITION READY – Dramatically smoother and lighter trigger pull
PRECISION MACHINED – Wire EDM & CNC cut tool steel, heat-treated to 50 Rc
FULL KIT INCLUDES – N Frame Diamond Speed Hammer, Extended Firing Pin, Reduced Firing Pin Spring, 11 & 12LB Rebound Springs, Double Action Sear, Pinned Stirrup
GUNSMITH FITTING MAY BE REQUIRED
MADE IN THE USA

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

CUSTOMER REVIEWS

The last piece

The Diamond Speed Hammer was the last piece that I needed to remove all the MIM (Metal Injection Molded) parts from my S&W 627. The transformation has been like night and day. The action is now one of the smoothest that I have ever felt or fired, in a pistol or a revolver. I had the good fortune of finding a retired gunsmith who had worked for S&W for thirty years to fit all the parts for me. I don't know what an action job from TK CUSTOM feels like, but I have to think that what I have now could be the next best thing. He also spoke very highly of the quality of the parts from TK CUSTOM. I don't think that any part offered on the website for this revolver was overlooked. I got 'em all. I liked the Hammer with a spur, but that is not available; a small price to pay.

Diamond speed hammer and Polished trigger

Another homerun from TK! Quality parts the fit like a glove and gave my 929 a magical feeling trigger pull.
You can't go wrong with TK Custom parts!

Great service and products are built perfectly!

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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.
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.