All my tippmann are before 2011 model.
My first paintball gun, in 2006:
A5 egrip with OpsGear G36 kit - fake supressor made with PVC ( plastic plumber)
other A5 egrip - MP5k kit - tac-cap
A5 mécanic - with Tacamo Magfeed kit - home made paintjob
A5 with RT - Tacamo AK47. the AK magasine is a real mag. I drill 2 holes for mount it, but it's already functionnal (springs...)
For CQB, my "universal key" to open the locked doors ( 40 lbs )