AMP Tactical M140 AEG Spring

The AMP Tactical M140 AEG Airsoft Rifle Spring is rated for approximately 140 meters/second or 460 feet/sec (FPS) on a standard AEG with 0.20g BBs. Results will vary based on other factor such as (but not limited to) air compression, barrel length and diameter, cylinder size and port configuration, and weight of BB used.