Nonocat gets to have try the limited edition E&L QBZ-191 HPA/CO2 Blowback Rifle, also known as the T191 GBB Rifle for a comprehensive review. E&L released the QBZ-191/T191 airsoft rifle to commemorate their 10th anniversary in the airsoft world. This replica is known for its realistic operation and snappy blowback. It offers the flexibility of using either HPA (High Pressure Air) with an external air tank or CO2 power with 12g or 33g cartridges.