PATENTED PULL-PIERCE TECHNOLOGY: CO2 is stored in the launcher unpunctured until the first trigger pull. On first trigger pull the CO2 is punctured and a projectile is launched simultaneously. UPGRADED WHITE DOT SIGHTS: High-Contrast bright white sights which allow for quicker acquisition in high stress situations. SUPER-CHARGED: the Byrna LE Launcher is more powerful than the SD. Max projectile speeds of 330 feet per second. INCREASED SHOT CAPACITY: Greater Shot Capacity than the standard Byrna SD. Fire up to 20 rounds per single 12g CO2 cylinder.