Toronto Airsoft provides a quick overview of the classic WE Hi-Capa 5.1 GBB Pistol. This pistol, with a length of 222mm and a barrel length of approximately 112mm, features a blowback mechanism. It has an adjustable hop-up and operates in a semi-automatic shooting mode. The magazine capacity is 31+1 rounds, and it uses 6mm BB bullets. The power source of the pistol is Abbey Ultra Gas. Impressively, it can achieve a muzzle velocity of 300FPS when using top gas at a room temperature of 25°C.