327 S&W Part ID

Chuck's Gun

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Jul 25, 2025
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Hello, just purchased a S&W Model 327 / 357 Mag that I have not fired yet and not sure what this part is used for. The gun came with 3 flat black octagonal spacers that rest over the cylinder face. Are these to be used for 38 special ammo?
Any help would be appreciated.
 

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