Two in one: the Bergstutzen is a compact rifle, which combines two precise rifle barrels of different calibre in one gun. Thus the hunter is well armed for all sorts of hoofed game. Merkel combines the manual cocking system with two finely tuned triggers. The single lock system guarantees maximum safety – and two fine trigger blades. The calibres of the large and small rifle barrels allow a variety of combinations. Moreover, over-and-under rifle/shotgun interchangeable barrels can easily be installed retroactively. A standard feature of the B4 is the adjustable lower barrel, which can be adjusted to the height of the forearm.