The PTS ZEV Core Elite Airsoft Electric Guns (AEGs) are available in 3 models with 7.5 / 10.5 /14.5inch barrels. Each model comes with the PTS ZEV Wedge Lock Rail which provides a fullcontinuous top rail with M-LOK mounting system and with integrated anti-rotation pin to ensure a consistent rail alignment and rifle rigidity. The outer barrel comes with a special bronze finish and the receivers are deeply engraved to ensure the Zev airsoft rifles’ appearance are with the original Zev rifles. Additionally, included as standard equipment for the ZEV Core Elite