
Smith & Wesson RMR, SRO & Holosun C Series KLN Frame Revolver Scope Mount *BLUE
SKU SW-RMR-BLUE
Allchin RMR Scope Mount – S&W K/L/N Frame RMR/SRO/Holosun Platform
Built by Allchin and offered through TK Custom, this RMR Scope Mount is the perfect red dot solution for pre-drilled Smith & Wesson K, L, and N Frame revolvers. It’s compact, rugged, and machined to bring your optic low over the rear sight notch—ideal for Trijicon RMR, SRO, or Holosun C-series red dots.
This mount maintains a tight zero under recoil and installs using the included screws and alignment pins. It’s the go-to option for revolver shooters adding fast optics to a proven frame platform.
Key Features
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Availability: Ships within 4 business days
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OPTIC COMPATIBILITY – Supports Trijicon RMR, SRO, and Holosun 407C/507C/508T red dots.
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FOOTPRINT: Trijicon RMR – 2 mounting screws with 2 recoil lugs for solid lock-up.
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PRE-DRILLED FRAME INSTALLATION – Fits K/L/N Frame Smith & Wessons that come optic-ready.
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INCLUDES HARDWARE – Comes with 3 mounting screws, 2 alignment pins, and 2 optic screws.
Why Shooters Choose TK Custom
This mount is built by Allchin and handpicked by TK Custom because it simply performs. It locks down, stays true, and gets your dot where it belongs—just over your rear notch and close to your bore. Trusted by revolver shooters who take their builds seriously.
Spec Ops Profile
- Manufacturer: Allchin
- Part Name: RMR Scope Mount – S&W K/L/N Frame
- Finish: Matte Black or Silver
- Footprint: Trijicon RMR
- Optics Supported: Trijicon RMR/SRO, Holosun 407C/507C/508T
- Includes: Mount, Screws (3), Pins (2), Optic Screws (2)
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Compatibility: Pre-drilled Smith & Wesson K/L/N Frame Revolver
*Quality you can see. Excellence you can feel.*
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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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