Quick overview of the licensed ASG Steyr M9-A1 CO2 NBB Pistol which should be available at reputable airsoft shops... "This pistol is fully licensed by Steyr Mannlicher, Austria. The ergonomic grip, illuminated rear sight and waiver/picatinny accessory rail makes this pistol very comfortable with a lot of external upgrade possibilities. The 12g Co2 capsule is stored in the grip and is easily changed. With 140 m/s (460fps) this is a very hard hitting pistol."