G&G BEU for G&G ARP/R2.0 Series (Battery Extension Unit) Pistons & Piston Heads This stock adaptor allows the

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

**This airsoft product is manufactured under authorized Centurion Arms license

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

Metal Barrel & Flash Hider

Inner Barrel Length: 380mm

G&G BEU for G&G ARP/R2.0 Series (Battery Extension Unit) Pistons & Piston Heads This stock adaptor allows theThe 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.