Buttstock blocker saiga

The blocker's staple, which prevents shooting when folded buttstock, enforces the law on hunting weapons. When the buttstock is decomposed, it is possible to put the fuse into fire mode, thus the staple moves to the butt groove, and also does not allow to fold it without putting the weapon on the fuse. If necessary, the staple can be replaced on its own, without visiting a specialized workshop.