This comes with 2 bbu/disconnectors for the option between full auto and semi,
Currently this capa is not assembled with the reason that the hammer strut is not included. This is used in my new build. A new one costs 10-15 euros, depending on which one. For more information, always send a video that it worked (most is still new)
btw, this one has been completely upgraded on the inside with AM and the guide rod is an AM that can be taken apart,
it is an advance frame, and the hop up is currently already mounted on the barrel with a new yellow rubber, 1 bbu / disconector set is from ytber knuckelsGSM and the other set is a cowcow light weight with an am disc,