Acetech Lighter BT Tracer Unit (Black) 9-inch 4V Fit Battery Pack Mini

4V Fit Battery Pack Mini / Handguard (Nickel / Li-Po) Barrel Thread Type Clockwise Barrel Thread Diameter 14mm Magazine Capacity 190 Rounds Bullet Type 6mm BB Power (Muzzle Velocity) 300~330 FPS Package Includes King Arms SIG556 HOLO DMR Full Metal AEG

Interchangeable backstraps

which is licensed and sold in the US by Springfield Armory

Hook and loop ID panel

- Magpul PTS CTR Battery 5 position Stock (Black)

Acetech Lighter BT Tracer Unit (Black) 9-inch 4V Fit Battery Pack MiniAcetech Lighter BT Tracer Unit Combined functions of Chronograph and Tracer Unit, connects to smartphone with Bluetooth! 1. Lighter BT can connect cell phone through Bluetooth and can perform the function of speedometer through AceSoft APP. 2. Lighter BT supports green and red tracers. 3. For installation, the barrel cannot be too long. The barrel cannot exceed 12 mm from the foremost end of the thread. Otherwise, the barrel will block the infrared