Disassembling and Rebuilding a Brass WGP Ram

I was taking apart a couple Brass WGP Rams to check whether the bumpers listed below work as replacements and I decided to take a video.

And here are the bumpers for the Brass WGP Rams:
http://www.baccipaintball.com/aut1489.html

And other WGP Rams and parts:
http://www.baccipaintball.com/parts/semi/autococker/pneumatics/rams.html

And find this post on facebook at:
https://www.facebook.com/baccipaintball/photos/514155972011716