LaserLyte has developed a tiny laser for North American Arms’ tiny Black Widow and Mini Master .22 LR and .22 Magnum revolvers.

From the press release …

The VENOM quickly and easily mounts by simply twisting out the existing cylinder pin and twist in the new LaserLyte integrated laser and cylinder pin configuration. The VENOM integrated laser holds the tiny 4×377 batteries, the switch and laser all in one compact package (less than two inches). The VENOM adds very little bulk to the gun, yet provides the user with the gained confidence of aiming accuracy. No sighting in is required with the VENOM due to the fixed-point-of-aim provided at the LaserLyte factory.

The minuscule circuitry within the LaserLyte VENOM laser holds a programmable laser with: constant on, pulse mode and an auto-off after 6 minutes. The battery life is five hours* in constant on and ten hours* in the pulse mode.