[Bushmaster Recon]

I dont know what bipods they used but I do know that they used Starlight night optic sights. It was a large, bulky, early attempt at night vision equipment that was mounted onto rifles such as the M14.

 

[Bushmaster Recon]

Hope this helps:
Kit:
Vietnam-era ALICE Webbing rig
Vietnam-era camo uniform and boonie hat(EDRL, Tiger Stripe, plain green etc.)

 

[Bushmaster Recon]

FYI....

The Starlight Scope was pretty much exclusively used on M14/XM21s, they were also fitted the good old M16 as well, but this was only done by the Army not the Navy.

I presume by Army you also mean USMC because the video above is of marine sniper Chuck Mawhinney using a starlight/M14.

 

[Bushmaster Recon]

Thanks for clearing that up.