The group Open Carry Texas is questioning the arrest of two demonstrators at the state Capitol.
DPS troopers said the men were openly carrying suspected deadly weapons and were given the opportunity to leave, but refused.
But a spokesperson for Open Carry Texas said the pistols the men carried were black powder replicas of revolvers, and therefore exempt as firearms.
"Two of our party members were carrying two pre-1899 black powder replica revolvers," said Amanda Andeen, a group spokesperson. "They were holstered the whole time. They were never drawn or displayed rudely by any means."
Despite the arrests, the group said it will continue its efforts until its point is made and things change.