Half Steel Gear & Bearing Aluminium Piston SRS A1 A2 connector Trigger group:

Trigger group:

The Nineball ultra tight bore steel barrel for gas blowback handguns is the result of all the accumulated technologies and experience gathered from the Prometheus EG barrel series

rotor & rotor spring

Be careful not to get any oil

directly attached to the quick-change barrel assembly

Half Steel Gear & Bearing Aluminium Piston SRS A1 A2 connector Trigger group:This parts are manufactured under CNC process, it improves: 1) strength of piston; 2) durability of gears; 3) smoothness of shooting with extreme high power. The safe working load (SWL) of the piston is 1. 9J. 2 rubber rings are included. One rubber ring is used for standard T. Marui size gas cylinder. Another rubber ring is used for bore up size gas cylinder and Wii Tech gas cylinder.