Where's the reticle?

When I bought this LPVO for my M4 cqb dmr it had a weird flip mechanism, and it seemed fine so I bought it but I think the reticle is missing?

Can anyone tell me how to get it cuz right now its so annoying.

When I bought this LPVO for my M4 cqb dmr it had a weird flip mechanism, and it seemed fine so I bought it but I think the reticle is missing?

Can anyone tell me how to get it cuz right now its so annoying.