Acetech is an airsoft accessory manufacturer who specializes in tracer units, chronographs, airsoft gun controlling system and auto target system. Their tracer units are designed for airsoft guns and pistols. They even enable users to install them in their own silencers. Chronograph series possesses self-calibrating function which make them more accurate, durable and user-friendly. All of Acetech products are CE and FCC certified. 

The rechargeable battery is fixed and not interchangeable.
Weight: 60 g
Shipping weight: 90 g