Begadi PRO CNC Alu Adjustable Speed Trigger Kit for JG S77 Series
With the CNC-manufactured Trigger Kit developed by us, the trigger travel of the JG S77 Semi AEG series with Begadi CORE can be reduced.
The typical AUG "Double Trigger" is deactivated accordingly and converted into a "Speed Trigger". During assembly, the existing click system (Springs) can also be removed and thus deactivated.
This kit consists of a CNC-machined safety, which replaces the original one, and an adjustment plate, which is also CNC-machined. This has slotted holes, allowing you to adjust the trigger travel according to your requirements.
Only the Upper Receiver needs to be removed for installation. Now you can mount the adjustment plate as shown in the pictures and adjust the Triggers. The further back the plate is screwed, the shorter the trigger travel.
The enclosed safety is replaced 1:1, push the original one out to the side and push the new one in.
Pay attention to the internal leaf spring, it must be correctly aligned again.
Reviews:
- Tech Video for the JG AUG/S77 - Orion CNC HopUp, Speedtrigger, 13:1, 28K + Feeding improve (YouTube, REAPERs Airsoft)












The typical AUG "Double Trigger" is deactivated accordingly and converted into a "Speed Trigger". During assembly, the existing click system (Springs) can also be removed and thus deactivated.
This kit consists of a CNC-machined safety, which replaces the original one, and an adjustment plate, which is also CNC-machined. This has slotted holes, allowing you to adjust the trigger travel according to your requirements.
Only the Upper Receiver needs to be removed for installation. Now you can mount the adjustment plate as shown in the pictures and adjust the Triggers. The further back the plate is screwed, the shorter the trigger travel.
The enclosed safety is replaced 1:1, push the original one out to the side and push the new one in.
Pay attention to the internal leaf spring, it must be correctly aligned again.
Reviews:
- Tech Video for the JG AUG/S77 - Orion CNC HopUp, Speedtrigger, 13:1, 28K + Feeding improve (YouTube, REAPERs Airsoft)











