weird looking JBL 075 on ebay

[vernb]

http://www.ebay.de/itm/JBL-Model-PA-075-gebr/261220767654?_trksid=p2045573.m2042&_trkparms=aid%3D111000%26algo%3DREC.CURRENT%26ao%3 D1%26asc%3D27%26meid%3D8442011668027841494%26pid%3 D100033%26prg%3D1011%26rk%3D1%26sd%3D261220767654% 26

What is this?

[gferrell]

A bullet in a barrel.

[Maron Horonzakz]

Does it come in a 100 round clip ????