Allchin Ruger GP-100 Revolver Scope Mount — RMR / Holosun / C Mount
Allchin Ruger GP-100 Revolver Scope Mount — RMR / Holosun / C Mount
A red dot scope mount for the Ruger GP-100 from Allchin Gun Parts, machined to put a modern optic solidly on top of your revolver. A mounted red dot gives you a single aiming point you can find fast, which helps for hunting, competition, and general red dot revolver builds alike.
This mount uses the RMR / Holosun / C series (Trijicon RMR, Holosun C series, and compatible) footprint, so it fits optics built to that pattern. Know the footprint of the optic you plan to mount before ordering, since the footprint has to match.
Key Features
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Puts a red dot optic securely on the Ruger GP-100 -
RMR / Holosun / C series (Trijicon RMR, Holosun C series, and compatible) optic footprint -
Works for hunting, competition, and general red dot builds -
black or silver finish -
Made by Allchin Gun Parts
Fitment
Fits the Ruger GP-100. Built for optics that use the RMR / Holosun / C series (Trijicon RMR, Holosun C series, and compatible) footprint. Confirm your optic uses this footprint before ordering. If you are not sure what footprint your optic is, contact us and we will help you confirm.
Specs
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Type: revolver red dot scope mount -
Optic footprint: RMR / Holosun / C series -
Finish: black or silver -
Fits: Ruger GP-100 -
Brand: Allchin Gun Parts
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
Allchin Ruger GP-100 Revolver Scope Mount — RMR / Holosun / C Mount
Wolff Reduced Power Spring Kit — Ruger GP-100
Machining Chamfering to accept moonclips for Ruger Revolvers
Ruger GP-100 .38/.357 Moon Clips
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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