The B-33 hinged dust cover can be mounted to either the B-10M or B-30 lower handguards using five bolts and forms a 170mm long picatinny rail platform above the AK receiver. This dust cover does not replace or interfere with the standard sights when installed. Allows the installation of all optics compatible with picattiny rails. Provides a secure platform with five support points that retains zero even after strenuous use and repeated disassembly.