I claim the ornamental design for a modular gate component, as shown and described.
FIG. 1 is a front perspective view of a modular gate component according to the present design;
FIG. 2 is a rear perspective view of the modular gate component of FIG. 1;
FIG. 3 is front elevational view of the modular gate component of FIG. 1;
FIG. 4 is rear elevational view of the modular gate component of FIG. 1;
FIG. 5 is a right side elevational view of the modular gate component of FIG. 1;
FIG. 6 is a left side elevational view of the modular gate component of FIG. 1; and,
FIG. 7 is a rear perspective view of a modular gate component showing attached gate components in broken lines for illustrative purposes only and form no part of the claimed design.