USGI Vietnam Era Nylon Rifle Butt Pocket and Strap Assembly RARE NEW

Anyone see these on ebay (USGI Vietnam Era Nylon Rifle Butt Pocket and Strap Assembly RARE NEW) any info on these would be appreciated.

http://www.fototime.com/1E12739D5F2A73A/orig.jpg

Thanks did not know they were for the M14.

Alice's little sister.