In early 1976, doubt about the viability of the reflex sight rose. The contrast requirements in adverse condition and added features like variable brightness, distance settings drove cost up exceeding that of a proper scope of similar size. On June 11, 1976, it was decided to switch to a scope. On June 15, 1976, the specification for a scope was finalized and the first model presented on August 5/6, 1976. In November 1977, the FODTP changed the specification accordingly. At the end of the contract in the summer of 1978, it was found to satisfy the requirement.