This is the sound of an old primer gun with front loading mechanism. It is just the clicking of the hammer, wich is designed in the style of an old flintlock gun.
Prillarhorn is a cow-horn that is blown like a trompet, it has holes in it so it can be played like a flute. It's quite ancient and was used up to the 1500's.
This was recorded inside my room with a tonor mic. The keyboard used is a very old lenovo keyboard, but it still sounds pretty decent. Feel free to use this wherever you want.