The sight has a single obelisk-shape post protruding from the bottom edge of the sight. Developed by the UK Royal Armament Research Development Establishment (RARDE), manufactured by United Scientific instruments and Avimo, now known as Thales Optics.
The supply price 20 years ago was £649.75! This sight is in excellent condition (no tritium operation) Stampde AVL 1988. Perfect Optics. Ref: SC164

