The Tacticon Armament BattleVest Plate Carriers can be fitted with weighted plates. It was designed to accommodate 8"x10", 10"x12", and 11"x14" hard armor plates. As long as you use weighted plates that are a maximum size of 11"x14" you will be able to use this carrier as a training/weighted vest.
Accommodates 8″ x 10″, 10″ x 12″, and 11″ x 14″ plates. It also has the capacity for side plates up to 6” x 8”