Hi, the SG-2 has a set neck, so it is glued on.

Think DB is reworking our Video for this process, but here's a good one from Precision Guitar Kits you could refer to in the meantime. Also plenty of advice in the FAQ and How to build your Pit Bull Guitar threads on getting the scale length right.

https://youtu.be/cyXOPq1KW4I

EDIT: Ok, our stock SG-2 was actually bolt on, but I have a feeling this Custom Order was set neck.

If you can take a photo of the heel and pocket we can see which it is and send you neck plate and screws if it is bolt on.