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We are proud to announce our new line of sub-gauge adapters, Gaugemate Cartridge !  Now you can get the same great quality you'd expect from a shotgun to shotgun GaugeMate Gold adapter in shotgun to rifle, shotgun to pistol, and rifle to pistol sizes.  Discounted pricing available for multiple orders.  Get yours today!  And remember, we add new sizes everyday and you are always welcome to ask for a custom adapter you can't find using our Contact Us  form.


GaugeMate Cartridge Available sizes:
FOR 12ga GUN FOR 16ga GUN FOR 20ga GUN FOR 28ga GUN
12-.45 auto 16-.45 auto 20-.357/.38 spc 28-.22* LR
12-.44 mag 16-.44 mag 20-9 mm  
12-.357/.38 spc 16-.357/.38 spc 20-.22* LR  
12-9mm 16-9 mm   FOR .410 GUN 
12-.22* LR 16-.22* LR   .410-.22* LR


*With conversions that use rimfire casings, we recommend to insert the converter and rotate it so that the inner barrel is at the top or bottom. Take note of this position as it will mean you are always shooting high or low.

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Adapter Info

See GaugeMate's sub-gauge adapters in action in our Gaugemate Challenge Video
gaugemate video

Learn more: "How Sub-Gauge Adapters Work

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