The rifle itself has no moral stature, since it has no will of its own. Naturally, it may be used by evil men for evil purposes, but there are more good men than evil, and while the latter cannot be persuaded to the path of righteousness by propaganda, they can certainly be corrected by good men with rifles.
The theistic philosopher has a tendency to devalue insufficient worldviews, ideologies, and quite often common sense for the greater good, and in such cases, one should not be discouraged when seen as a bad guy. If he stresses over man's perception of a righteous heart, then he has given his heart to man.
There is such a thing as righteous judgment, but it seems that lately the word 'judgment' has become a curse word, period. The issue isn't whether or not we're insightful enough to avoid being judgmental, but whether or not we're secure enough to accept being judged. It is inevitable for every conscious human being to judge. It may spring from insight and experience and sincerity, and in such cases, it is quite beneficial on the receiving end.