Who can i.d. this stock?

[camster]

Hello all.

A buddy sent me these pictures, curious as to what it's for....I'm stumped. I'm not even certain it belongs here in milsurp....

The buttplate, n' sling fastener appear pretty 'surpy to me...

Might be an air rifle (trainer) too...

Any really good guesses?

Thanks in advance for help, or at least sharing in the guessing game!

 

[louthepou]

Looks like it's from a PPSh smg?

 

[tiriaq]

Yup. PPSh.

 

[louthepou]

Woohoo! What do I win?

 

[camster]

Do you have a stock-less PPsH?

I guessed MAS, but the butt with trapdoor isn't right.

 

[Kayser Sose]

Papasha, indeed