A guide of guns for beginners - Part 5 - Principles of guns and strategies of choosing guns 

This is a course for beginners of gun users. The course content covers basic knowledge of ammunition and guns, guns maintenance and shooting skills, and more. In this lecture, we discussed the working principles of striker fired semi-auto pistol, hammer fired semi-auto pistol, and revolver. We presented a list of factors that beginners need to consider when buying a gun, and gave a hierarchy to rank these factors during the gun selection process.