AceTech Brighter C Tracer Unit Color:Green **The M4i unit is updated

**The M4i unit is updated for 2022 and replaced the previous older red ME unit

the system can be fine tuned using more restrictive valve stems and shims which allows air efficiency to more than double when operating at traditional field velocities

The new ASL is based upon the success of the previously popular 'Battle Machine V2

The 7mm is the OEM version for most uses and spring types

AceTech Brighter C Tracer Unit Color:Green **The M4i unit is updatedThe world's first patented design without switch, power on by shaking With IP64 protection, enjoy the shooting experience in sunny or rainy days Supports both green luminous BBs and gel BBs, perfectly for all Airsoft night games Compact and weighs only 32 grams, making it easy to carry and occupying no space It can be used as a standalone tracer module or put into a mock suppressor Lithium battery design, can supply 20,000 rounds with one charge