81mm mortar

I think, These photo is belong to 81mm practice mortar (East block).
I want to know the your opinion about that.

Are the body and igniter Inert?

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This is a US 81mm inert practice round. Just the primary charge (propellant) is like in any ordinary round that is meant for firing.

To be correct, it is the M68:

Thanks alot
For helping.