Here's a great selection of paintball gun silencers.  Check out the Special Ops Thread-On Silencer; it fits the T68 and all tactical barrels.  You can't beat the MK23 or classic Socom silencer for their ultimate realism.  Remember that paintball gun silencers do not actually 'silence' your shot; they are not functional in this manner.  Paintball gun silencers are awesome looking though and will also add a little more length to your barrel.  Add a silencer to your tactical marker or paintball pistol today!