This procurement is for a one-year Indefinite Delivery Contract for sight extension arms, with an aggregate order ceiling of $350,000. The guaranteed minimum is one unit, with an estimated four orders per year. Delivery of items is required within 140 days after receipt of order, and they will be shipped to various DLA depots within and outside the continental United States. Quotes must be submitted electronically, and all responsible sources may submit a quote for consideration.