The Sightmark Accudot 12 Gauge Red Laser Boresight is ideal for competitive shooters, hunters and law enforcement. The Accudot is crafted of durable brass that improves chambering and ejection of the boresight. Accudots feature a durable, power-saving and money-saving rechargeable internal Lithium-Ion battery that only activates when chambered. The Accudot come with a charging dock, USB cable, wall adapter and a carrying case.