In the world of firearms enthusiasts, there are gun nuts, and there are those people who gun nuts think take their love of guns too seriously. If you are from the camp of the latter, you’re going to want to know just what makes your favorite firearm tick. Unfortunately, not everyone has access to some of the hard-to-find guns in the world. Fortunately, there’s an app for that. Gun Disassembly 2 for Android, iOS, Windows and Mac gives you a library of over 60 handguns, SMGs and Rifles that you can take apart down to the last pin. That’s over 5100 parts that you have complete access to. The app allows you to operate the guns, take them apart and even make parts transparent so you can see the individual parts at work. It even allows you to attach supressors, optics and other accessories, in case you have a gun project that you want to try. Best of all, it’s absolutely free. If you’re interested, head over to the App store for iOS, Google Play, get the EXE or the Mac App store and give it a shot.