The pistol disappeared after restarting the game (Rise of the Tomb Raider)

Hello folks, I bought Rise of the Tomb Raider on the incentive, played a little, came out.
I go in the next day, everything is fine, but there is no pistol, there is a bow, although I remember exactly that I fired from it (a pistol). Who faced how to solve, and what the hell is this in general ...