The sensor based gun systems are also known as sentry guns, is a firearm which automatically aims and fires the intended target. The activation feature prevents the misuse, accidental shooting, and usage against the authorized owner. These sensor based gun systems are integrated with various sensor systems such as fingerprint recognition, radio frequency identification (RFID) chips and mechanical locks, which determine an unauthorized target and authorized owner. The major factor boosting the market for sensor based gun systems is the growing concerns regarding securing of international borders. The world is facing a huge challenge against increasing terrorism, and in order to secure the international borders from cross-border firing and illegal infiltration, the defense forces in the developed as well as developing countries are adopting these sensor based gun. In addition, these guns are manufactured with composite materials which reduces the weight of the final product, and this in...