The LeMat is a cap and ball revolver with a single-shot, smooth bore barrel of buckshot beneath the main barrel, allowing players to switch between revolver and shotgun ammunition at their leisure.
With Revolver Ammo, its damage and accuracy are both marginally better than the Schofield Revolver and decisively superior to that of both the Double-action and Cattleman revolvers. However, its rate of fire is the slowest of all in-game revolvers, as is the reload speed, although the latter factor is somewhat circumvented in that the ammo capacity is nine rounds as opposed to the default six.
With Shotgun Ammo, the LeMat performs similarly to the Sawed-off Shotgun, except it has one round available instead of two.
In Red Dead Redemption 2, the LeMat Revolver can be purchased from the gunsmith in Saint Denis after the mission "The Gilded Cage".
In Online, the revolver can also be purchased from any gunsmith or from the handheld catalogue that the Online protagonist carries on-hand.
- The LeMat Revolver is the only weapon in the Redemption saga to feature a secondary firing mode.
- The LeMat is the most expensive revolver in both Redemption 2 and Online.
- Despite being primarily a cap and ball revolver, the reload animation for the LeMat is the same as the other in-game revolvers, which are cartridge firing revolvers. The same was seen in the previous game's model. There were cartridge firing LeMat revolvers in existence, although they looked a bit different from ball and cap version the in-game model is based on: they had a distinct, shorter cylinder and the Belgian centerfire variant also had a different grip.
- Historically, the LeMat was named after its designer, French physician Jean Alexandre LeMat.