ACETECH Lighter Tracer Unit (14mm CCW) Net-Weight-(g)_145 4V Lipo Type Battery (Small

4V Lipo Type Battery (Small Tamiya) for installation into Handguard

Suitable for VFC M4 / HK416 Series Airsoft Gas Blow Back GBB Rifle

Removable Gas Tank (It is stocked inside the Rifle stock)

Design for Ehanced the Original Parts More Durable

and in this case

ACETECH Lighter Tracer Unit (14mm CCW) Net-Weight-(g)_145 4V Lipo Type Battery (SmallACETECH Lighter Tracer Unit (14mm CCW ) The Lighter tracer unit, which is designed for airsoft pistol, is the smallest, lightest, and most power saving tracer unit in the world. Because of its small dimension, it enables users easily to install it into their airsoft silencers or airsoft gun hand guards as long as their inner space is larger than the dimension of Lighter. (Diameter: 30mm or 1. 181 inches, length: 101mm or 3. 98 inches) Automatically