Can you tell a noob about a "FULLY Automatic FULL Scale M83A2 Airsoft ault Rifle?"?

The base M83A2 rifle features a high-speed motor pre-installed from the manufacturer, along with a high-power polymer gearbox for the best balance between value and performance on the market. I have chronograph verified this AEG rifle to shoot on average at 260-300 FPS with 0.12g plastic seamless performance BBs, hitting top figures of 311-312 FPS! Surprisingly, rate of fire stays quite good at a more-than-respectable 650-700+ rounds per minute, even despite the bump in power for this year's new production run model.