From The Truth About Guns:

The case has led to an interesting split of opinions among gun rights advocates. Figures like Eric Blandford and CJ Grisham argue the law used against Biden is unconstitutional and that his prosecution sets a dangerous precedent for gun owners. They admit they face pushback from conservative circles, where supporting Biden is seen as controversial. Blandford explains, “Of course, people are going to say, ‘Why do you support Hunter Biden? He’s the enemy.’”

In contrast, the NRA supports Biden’s prosecution, stating it exemplifies the need for firearm prohibitions for drug users. John Crump over at AmmoLand notes the division within the gun community: some advocate for equal legal treatment, while others oppose prosecuting anyone under what they see as an unjust law.