[PSUBS-MAILIST] tank periscope optics

[AndrePevestorf@aol.com]

Hi,

I yust remember the special periscope optic in a tank (BMP-1 or T-55)
my recollection says that this prism are very heavy but also easy to change... so I wondering if it could be possible to use some of that for a sub... 

but the first question is:

are there any legal ways to get such army stuff second hand ?
( I know in former times it was possible to get a russian gun for a bottle of wisky but thats not the kind of deals I´m looking for..)

A.