Operation Parts was established in early 2003 after having had enough of dealing with over-priced, non-stocking, slow to ship, and rude companies. We strive to do business the way it was meant to be done. We are AR15 enthusiasts, we personally test as many of our products as possible to insure that we are selling quality products that will deliver as promised. This testing also allows us to become very familiar with all aspects of the products, this allows us to answer any questions that you may have.