400+ FPS Upgraded and Tuned Airsoft Gun

High quality airsoft and powerful airsoft gun with enhanced and upgraded parts, shooting at 400 FPS or more. The M4 Airsoft Guns Series from JG are shooting above 400 fps. There are limited airsoft guns on the market that are upgraded directly from the manufacturer. These factory tuned brands include popular names such as the JG. There are more benefits and advantages as compared to a standard airsoft electric gun. These guns are known as durable airsoft guns, and have better performance. These factory installed 400 FPS guns can also be fine tuned with various popular aftermarket airsoft upgrade and replacement parts.