A long time ago I made a folding barricade that sorta worked but I wanted to use something a little better but still easy for me to transport. I don't have a pick up so I can't exactly use a full size VTAC-type of barricade and it's usually just me at the range so it also has to be relatively light. I watched a 6.5 Guys video a while back talking about their barricades and I liked how their support feet attached so I used that for some inspiration on a new barricade for myself. Since it's not easy for me to transport a full 4X8 sheet of plywood I used a quarter sheet since it can still get me to a reasonable standing height with room for a kneeling and sitting position. This is what I came up with:

It's made from:
2 2X4 sheets of 3/4" plywood
2 2X4"s 8'
2 1X2" 8'
It took about an hour and a half to construct and about $50 in materials.
The angled 2X4 is removable and reversible so that it can go to the right or left. I can work on sitting, kneeling, and standing positions, as well as working on shooting from angled obstacles like tank traps, although an actual tank trap is next on my list of builds. The feet are friction fit and the channels made by the 1X2's help keep them aligned so they don't move around.

It's made from:
2 2X4 sheets of 3/4" plywood
2 2X4"s 8'
2 1X2" 8'
It took about an hour and a half to construct and about $50 in materials.
The angled 2X4 is removable and reversible so that it can go to the right or left. I can work on sitting, kneeling, and standing positions, as well as working on shooting from angled obstacles like tank traps, although an actual tank trap is next on my list of builds. The feet are friction fit and the channels made by the 1X2's help keep them aligned so they don't move around.