The ornamental design for a firearmtrigger, as shown and described.
FIG. 1 is a left side view of a firearm trigger showing our new design.
FIG. 2 is a front view thereof.
FIG. 3 is a right side view thereof.
FIG. 4 is a rear view thereof.
FIG. 5 is a top front perspective view thereof.
FIG. 6 is a top rear perspective view thereof.
FIG. 7 is a top front perspective view thereof.
FIG. 8 is a bottom front perspective view thereof.
FIG. 9 is a bottom front perspective view thereof; and,
FIG. 10 is a side view thereof, in an environment of use.
The portions shown in broken line are for illustrative purposes only and form no part of the claimed design. Dash dot lines shown at the boundary between broken lines and solid lines are included to delineate claimed design from unclaimed portions thereof and of themselves are unclaimed portions of the design.