Robo-Airsoft gives review on his custom ZTW M4 made by Z Custom Airsoft Works... "In this edition of Robo-Reviews, I give you a full-on update on my Canadian M4 build, including the custom work I recently had done to it. I'll go over all the accessories and exterior parts I've put on my ZTW, as well as break down all the internal parts that have gone into making this sports car of an AEG. With that concluded, I'll give you a taste of its performance.

Please take the time to visit Z Custom Airsoft Works and Oppenheimer Airsoft."