They normally don't have Allen wrenches older models of markers you have to change springs instead of just turning a screw And you have to adjust your own marker. They don't have the knowledge to adjust all the different kinds of marker. Read or look up the owner's manual on how to adjust you FPS. What kind of marker?
I seek to recall 2 staffers at the range when I chronoed. I also remember they had a set of hex keys. I didn't see anyone receiving help with FPS, but they seemed to be happy to help any way they could.
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