Add to ORKGBachelor thesis engages in analysis of firing mechanisms of chosen firearms. In introductory part of the thesis, there is a research made which involves gun problems, theoretical basis of gun theory is summarized and detailed description of firing mechanism of some types of guns is given. Alternatives of solution of the set assignment are analyzed at the end of the theoretical introduction. Practical part of the thesis deals with firing mechanisms’ analysis of four different types of firearms and subsequently with theoretical calculation of initiation energy and impact speed of the firing pin. This calculation is in conclusion applied on some specific guns. Final output is the determination of initiation energy, impact speed of the firing p...