Product management display system

A merchandise display system comprising:

• a front rail comprising at least a first engaging member;
• at least one roller assembly configured to connect to the front rail comprising a roller carriage having a plurality of rollers, the plurality of rollers being configured to advance product;
• a barrier located on the roller assembly;
• and
• a second engaging member connected to either the front rail or the at least one roller assembly and configured to move between a first position and a second position,
• wherein the roller assembly is (a) movable in a lateral direction parallel to the front rail and (b) secured in a direction perpendicular to the front rail when the roller assembly is engaged with the front rail and the second engaging member is in the first position, and
• wherein the roller assembly is (a) fixed in the lateral direction parallel to the front rail and (b) secured in the direction perpendicular to the front rail when the roller assembly is engaged with the front rail and the second engaging member is in the second position.