british gunsight ??

[kevin1947]

no idea about this

[KradSpam]

I would say British from the Trilux markings, as it is the same as the small arms sight 'SUSAT' (sight unit small arms trilux). For which weapon I can't help you, something reasonably big though I think. Dated 1987 is it?

[Richie B]

The NSN is shown here as "TELESCOPE,ELBOW"

Defense and Aerospace Sustainment Partner

"99" - the 5th and 6th digits indicates the UK.

I will have a further dig round later on if no-one has come up with an answer.

Regards

Richie