The T8.1 comes equipped to fire the revolutionary new First Strike projectiles, in addition to standard .68 caliber paintballs. The new hard anodized, solid aluminum upper receiver allows a remote to be attached directly to the marker (optional remote kit required) and provides unmatched durability. Player's will also appreciate the removable under-mount tac-rail, side dovetailed iron sights, and dual rubber detents that improve versatility and performance. The transformation wasn't complete without upgrading the magazine... a lightweight, all metal mag that field strips for cleaning in seconds, and features a low profile tool-less quick puncture for changing 12 grams on the fly. Consider the bar raised!