Ryan Sin reviews the licensed Umarex HK416C GBB airsoft rifle, which features the CGS SYSTEM Lightning Series as implemented by T8 AIR Design. This 6mm caliber airsoft gun is constructed with an ABS and metal body, including a metal upper and lower receiver, and boasts an adjustable overall length of approximately 720 to 801 mm. Notably, it incorporates a full steel parts trigger box and comes with a magazine capacity of 30 rounds.