The Echo 1 BB Tracer Barrel Extension is the best quality tracer unit available. The sensor creates a flash of light inside the barrel extension to ignite glow in the dark BBs so they can be seen while in flight. This barrel extension is equipped with a 14mm counter-clockwise threading to be used on a wide variety of airsoft guns. This unit is powered by 4 AAA batteries and has an easy access on/off switch at the base.
Length: 133mm (5.25")
External Diameter: 35mm (1.49")
Thread Type: 14mm Counter-Clockwise
Thread Position: The edge of the barrel extension
Recommended fit: M4, M16, G36, MP5
Fabulous unit, got it when it first came out, runs like a charm, fits on all my M4/M15 series and my P90 no problem. Works very well. Fully illuminates the pellet for long lasting glow. Looks great. Tracer shots are extremely cool for nighttime scenarios and op's. Love this product, glow is on par or better than my friends AMP unit. For 20$ less thats a very good deal
-Works extremely well
- Cheaper then comparative models
- Fits any 14cw? thread
-Secure, snug, fit
-Easy switch access
- Kinda short, can look odd on larger style guns
- not much else
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