The AEG based on the Italian Spectre SMG gets checked by Mach Sakai. The S&T M4 Spectre SMG is mainly made of Polymer with a built-in foregrip that has a battery compartment. This can be powered by an 8.4v Mini Battery and comes with 48-round BB magazine. Mach Sakai checks it out for externals, operation, and performance in a quick steel challenge.