EXTENSION PIECE Russian patent published in 1998 - IPC

FIELD: small arms. SUBSTANCE: proposed extension piece mounted on small arms. It includes eye-piece with outlying pupil, head gear put on head of user, regular bundle of fibre-optical light guides, lens in mount with pawls of collet grip pressed with tubular rubber protective aid against eye-piece, typical optical ( infrared ) sight. Replacement of pawls for various sights as well as connection of lens to mount with the use of shaped grooves and protrusions are provided. EFFECT: free movement of eye-piece and light guide with reference to lens without adjustment, provision for attachment to various sights, small mass, facilitated manufacture and easy handling. 1 cl, 2 dwg