This tracer unit is designed for green tracer BBs.

Having used this for multiple game days, I can recommend it as one of the most user friendly, basic tracer units going. You will not have to think about the power state of your tracer while playing. 

Features:

• Power on by shaking (this is very handy, especially if your tracer is inside a suppressor or recessed into a handguard)
• IP64 protection, can be used in all weathers
• Compact and weighs only 32 grams, it is easy to carry and takes up no space
• can also be used as an insert in a larger damper
• 20,000 shots on a single charge
• 35 rounds per second, brighter than conventional tracer units
• Thread: 14mm counterclockwise female + included adapter: 11mm clockwise male
• Made in Taiwan with FCC, CE and ROHS certification