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 Silver 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.

*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.

GaugeMate sub-gauge adapters give you the capability to shoot smaller gauge shells in your larger gauge gun.

Our premium GaugeMate Gold Adapters are designed to stay in your gun betwen shots minimizing your reload time and maximumizing convenience.

Our economical GaugeMate Silver Adapters are removed with the spent hull between shots.

Both GaugeMate Gold and GaugeMate Silver come in 14 popular adapter sizes.

If you have an odd or obscure bore gun, we build GaugeMate Custom adapters.

Our newest products are GaugeMate Cartridges which bring ammo versatility to a wide variety of guns.

GaugeMate offers a complete line of sub-gauge adapter Accessories as well as Black-Caps, the world's best snap caps.

Call GaugeMate at 1-800-709-9910 to discuss your sub-gauge adapter needs with us.

The RangeMate™ Optics Mount gives you the same functionality as a tripod, but with a whole lot more flexibility and assurances that your equipment will never get damaged again due to accidental “tip-over”.

RangeMate is great for birding, spotting at the range, cameras and photography, and rangefinding (especially when ranging on a small, distant target when you need to to have stability for the laser crosshairs).