Utilize the input text as a context reference, choose the right relationship between 'Lockheed Martin' and 'ammunition' from the options.
Options: parent organization, product/material produced, position held, currency

Meggitt’s US-based Defence Systems unit has been awarded a $42.1m (£27m) contract by Lockheed Martin UK to design an build an ammunition handling system for the British Army’s new “Scout” armoured vehicles.
product/material produced