FIG. 1 is a right side isometric view of a firearm handguard system showing my new design;
FIG. 2 is a left side isometric view of a firearm handguard system showing my new design;
FIG. 3 is a side view of a firearm handguard system showing my new design;
FIG. 4 is a top view of a corner of the firearm handguard system showing my new design;
FIG. 5 is a bottom view of a firearm handguard system showing my new design;
FIG. 6 is a right side isometric view of another firearm handguard system showing my new design;
FIG. 7 is a left side isometric view of another firearm handguard system showing my new design;
FIG. 8 is a top view of another firearm handguard system attached to a firearm showing my new design;
FIG. 9 is a front view of a firearm handguard system showing my new design;
FIG. 10 is a back view of a firearm handguard system showing my new design;
FIG. 11 is a side view of a firearm handguard system attached to a firearm showing my new design; and,
FIG. 12 is a side view of a another firearm handguard system attached to a firearm showing my new design.
The broken lines shown in FIGS. 1-12 are for the purpose of illustrative purposes only and form no part of the claimed design.