HAO's firing selector for GHK Airsoft.
A pair of selectors of eccentric C.C L119A1/A2 style.
Used on L119A2/A1.
(The photo is the MWS version. The difference is only with the core)
 
 
Made in Taiwan
BB type: 6mm 0.2g BBs
Power source: 11.1V PTW, AEG / 9KG green gas GBBR
Power: 90 m/s = 0.81J with 0.2g BBs
J / cm2:  2.835 J/cm2
Design and manufacture for Airsoft use. No live ammunition using function.