This gun disassembly 2 is the best IPAD app thus far. Ive bought ALL of the models and will get more as they make them. Thanks to this I am able to better understand how these gun works. Actually has real world use too. Broke apart a ruger LCP and this app REALLY helped. Gives Xray views of the guns and how they work. Worth every penny.
http://itunes.apple.com/us/app/gun-disassembly-2/id436292998?mt=8
http://itunes.apple.com/us/app/gun-disassembly-2/id436292998?mt=8