The grip frame is easy to swap going from electro to mechanical in minutes

Screen printed Adrenaline logo

So if you were to buy one in Thunderstruck it may be serial # AS29 but could be #2 in the Thunderstruck line (somewhat like artwork numbering)

Pewter anodizing pattern

adrenaline regulator by powerhouse standard body custom anodized Barrels The grip frame is easyThe Adrenaline Regulator by PowerHouse is based on the PowerHouse TKO, the most advanced paintball regulator ever made. We sound like a broken record sometimes when we say things like that but facts are facts. We worked with PowerHouse for a very long time to take the already best in sport TKO to the next level. The entire Adrenaline Regulator body features Adrenaline's 5 axis Tryamid pattern just like on the Adrenaline Luxe. We spent a TON of effort