G&G BEU for G&G ARP/R2.0 Series (Battery Extension Unit) Pistons & Piston Heads Inner Barrel Length: 380mm

Inner Barrel Length: 380mm

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This stock adaptor allows the mounting of an M4 push-on tube and will accommodate most M4/M16 stocks currently produced

Brightness: 180 lumens (the same as the original product and military brightness)

An unique AEG designed by LCT's in house designers

G&G BEU for G&G ARP/R2.0 Series (Battery Extension Unit) Pistons & Piston Heads Inner Barrel Length: 380mmThe BEU, or battery extension unit is a must for players who wish to add extra battery space to existing ARP series or Raider 2. 0 series AEGs. The unit provides an additional 50mm of battery space, developed by Airtech Studios.