Wanted: Looking for AN/PVS-7 B/D or NVG-7 shell

Looking for AN/PVS-7 D/B, or NVG-7 shell only, or broken ones(even pieces are fine), digital replica ones are also works. I want those for my US army collection but don’t want to spend a lot of money on it  ,and if you have one of those , please let me know,thank you!