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A moon clip is a ring-shaped or star-shaped piece of metal designed to hold multiple cartridges together as a unit, for simultaneous insertion and extraction from a revolver cylinder. Moon clips may either hold an entire cylinder's worth of cartridges together (full moon clip), half a cylinder (half-moon clip), or just two neighboring cartridges. The two-cartridge moon clips can be used for those revolvers that have an odd number of loading chambers such as five or seven and also for those revolvers that allow a shooter to mix both rimless and rimmed types of cartridges in one loading of the same cylinder (e.g., 2 adjacent rounds of .45 ACP, 2 rounds of .45 Colt, and 2 rounds of .410 in a single six-chamber S&W Governor cylinder).
Moon clips can be used either to chamber rimless cartridges in a double-action revolver (which would normally require rimmed cartridges), or to chamber multiple rimmed cartridges simultaneously. Moon clips are generally made from spring grade steel, although plastic versions have also been produced. Unlike a speedloader, a moon clip remains in place during firing, and after firing, is used to extract the empty cartridge cases.

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  1. Reno

    Plastic moon clips? Or?

    Are plastic moon clips a thing? Or other lesser expensive options? Curious if there is a market for such a thing? All the ones I’ve seen are quite expensive for what they are. I’ve seen some as high as $5 a piece. They were stainless wire EDM cut, but dang! I’d think these should be fairly...
  2. CountryGent

    The Ultimate Moon Clip Conversion?

    Has anyone here availed themselves of this service: The Ultimate Moon Clip Conversion? It looks interesting because you can still load singly or via moon clips. I think I'm going to call them on Tuesday to see if it can be done on one of our wheelguns. Thanks. :)
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