armorer's kit...which one?

[sundance]

Wanting to buy an armorer's kit from Bushmaster. They have two types. A1 and A2. I have an A2 Bushy and a custom flattop model. Which would be best ?

 

[NMshooter]

Only difference I can think of would be the sight adjustment tool.

You would want the A2 tool, to go with your Bushmaster.