98 Question

[Q98]

On page 154 of the complete guide to paintball(Book) there is a kameleon 98 with a silver thing under the grip and an HPA(?) tank on it. What is that silver thing and where did he get it and can you get one for co2?

[VeNoM]

i havent seen it, but is the tank screwed into it? and its on the bottom of the grip? its probably a drop forward, you can get them from online paintball stores or most likely your local shop has them too.