Picatinny / Weaver bracket "KOCHEVNIK" series 1,2,3,4,5,6,9 are installed with a single hexagonal key, they have a unique fastening design. The bracket material is B95. Differences: - High stiffness, ensuring stability of orientation and high accuracy of shooting for a long period; - easy installation with just one screw; - Accuracy and reproducibility of orientation during re-installation after dismantling; - The installed bracket does not interfere with the disassembly of the weapon.