Wrong, it is the gun banners who never have facts on their side. We have one well known left wing poster who essentially lies constantly. I have yet to see anyone on the pro gun rights side say anything as stupid as claiming "AR 15s are WEAPONS OF WAR" (even though they have never been issued to any military unit) or -from another left-winger, that semi auto rifles are WEAPONS OF MASS DESTRUCTION.
I have explained why the anti gun side constantly lies or makes blatant errors. It is because that side, unlike us, are mainly made up of people who don't like guns, don't understand guns, have not spent countless hours using guns, dealing with the laws concerning guns, etc. The anti gun movement mainly starts as an ANTI conservative, anti NRA, anti pro-gun voting bloc and tries to make up reasons for pushing gun bans or gun restrictions that are NOT motivated by their real desire to harass gun owners. Since they don't really know the field, their facades tend to break down under scrutiny.