The ornamental design for a modularforendsystem for tactical firearms, as shown and described.
FIG. 1 illustrates a perspective, side view of a new design for a modular truss-type forend system for tactical rifles depicting a modular forend with a plurality of accessory mounting rails;
FIG. 2 illustrates a side view of a new design for a modular truss-type forend system for tactical rifles depicting a modular forend with a plurality of accessory mounting rails;
FIG. 3 illustrates a side view of a new design for a modular truss-type forend system for tactical rifles depicting a modular forend with a plurality of accessory mounting rails;
FIG. 4 illustrates a top view of a new design for a modular truss-type forend system for tactical rifles depicting a modular forend with a plurality of accessory mounting rails;
FIG. 5 illustrates a bottom view of a new design for a modular truss-type forend system for tactical rifles depicting a modular forend with a plurality of accessory mounting rails; and,
FIG. 6 illustrates an exploded, perspective, side view of a new design for a modular truss-type forend system for tactical rifles depicting a modular forend with a plurality of accessory mounting rails.
The broken, dashed lines shown in the various figures depicting the invention are included for the purpose of illustrating environment and do not form any part of the claimed design.