G&G Combat Machine Raider M4 CQB RIS Gas Blow Back Airsoft Gun. This gun has been fielded once. This gun is one of the best guns I’ve used. It’s extremely realistic and operates as an actual M4. The gun comes with all attachments and 9x 30 round GBB magazines(Green Gas, propane cans be used also). This is priced to sell. Getting out of the sport. No Trades.