Rifle handgrip

FIG. 1 is a right side elevation view of a rifle handgrip, showing my new design;

FIG. 2 is a right side elevation view thereof;

FIG. 3 is a bottom plan view thereof

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a rear elevational view thereof.

The broken line showings of a rifle and a user's hand are for illustrative purposes only and form no part of the claimed design.