eHobbyAsia have sent over details of the XR25 GBBR from Rare Arms they are stocking:
Rare Arms XR25 Enhanced Carbine (Shell Ejecting)
Rare Arms XR25 Enhanced Carbine (Shell Ejecting)
– Semi Automatic Shooting Mode
-Realistic Shell Ejecting Mechanism
-Full Metal Upper & Lower Receiver
-320mm Free Float Rail System Handguard (With Built-in Front Sight)
-Removable Metal Flip-up Rear Sight
-Stainless steel bolt Carrier
-410mm Outer Barrel With 70mm Flash Hider (18mm CW)
-10 Position Buttstock withc Rubber Stock Pad
-Ambidextrous steel made safe-semi-auto selector and magazine Release
-Steel Housing Magazine accommodate 15 Rounds Aluminum Cartridge Shells (Each -bullet can hold 1 Rounds of 6mm Plastic Pellet)
-Include 15 Rounds Aluminum bullet
-The CO2 is contained in the pistol grip (1 bottle Co2 can be fire 35-40rds)http://shop.ehobbyasia.com/rare-arms-xr25-enhanced-carbine-shell-ejecting.html#.VO6XBbGXlvs