South Point Airsoft talk about the WE M4 CQBR gas blowback rifle. They do an unboxing, a detailed overview of the rifle's features including the flash hider, sights, quad rail, and adjustable buttstock, and a demonstration of the functional parts like the forward assist and bolt catch. They also cover the two included STANAG-pattern magazines, demonstrating how to load them with BBs and green gas. From there, they do a live firing demonstration, showing the rifle's performance in both semi-automatic and full-automatic modes, and the bolt locking open after the last round is fired.