Hello, for me it looks like a mixture of certain parts but most (upper fitting, buckles slides) are for an RAD leader dagger. It might be a very late combination. Especially in connex with RAD you can see a mass of differing hangers.
Regards,

wotan, gd.c-b#105

"Never look for sqare eggs" as a late owner of an original FHH-dagger used to say.