Is this a normal ASA / Expansion Chamber setup?

[acrewofone]

Is that an expansion chamber screwed into the ASA?

https://www.ebay.com/itm/166879941398?_nkw=vintage+paintball&itmmeta=01J6DZ29F4DV637FJG2HN3F3CG&hash=item26dad1d316:g:Bc4AAOSwlS1mnXkl&itmprp=enc%3AAQAJAAAA0HoV3kP08IDx%2BKZ9MfhVJKlu7Bp%2Frj7p%2FK5xiQEG3ILTyLl%2F1ClRce4qJPQltD9vkMS%2FPSWnz7YKdy5wMeH3JszZAzWPTrbNNs33zF3wazssASgCe1PlN9%2FMDKTzAykptclbh9ZDVIRekpo2rGIN7jeQJe1lmyaz24O9LNUE8MsEJ2xt%2Fth7OlYbw4yOz4AseRzdsyR%2BGLUJaG11Qt4Nn8wlRV46xFId4ZVJzpraXnNzdun3vplsJfciTTsi0MypgoYe6tKkhw%2FAyfmbID%2FD87w%3D%7Ctkp%3ABk9SR96Xib-zZA

[scottieb]

It is. I label it unusual but I see it occasionally.

[Trbo323]

That's a cheap remote setup if I've ever seen one

Sent from my motorola edge 5G UW (2021) using Tapatalk

[Heavy_D]

Wild setup. Buddy Really Dislikes forgrips.

I used to shoot a Black Dragun as a teen, such a cheap wanna be E-spyder but damn I thought I was cool. mine was semi auto only but got checked for full auto couple times, actually shot pretty quick with a Egg ontop, only blended every few... haha