This gun comes in a four finger (shown in picture) and a two finger version. (same as GX10 gun) The G10 could have 11/16" or a 7/8" thread. All new G10's have 7/8". And all new SprayTech units come with a 7/8" threaded gun also. On the repair kits below we have both threads. If you have a 11/16 thread gun now, you can install the 7/8" kit to convert over to the bigger thread.