Perhaps the most important thing that economic systems seek is to achieve a kind of social justice and a fair distribution of wealth among members of society with the achievement of general welfare. Looking at the Islamic economic system, we find that it has established important mechanisms and foundations represented in the provisions of Sharia for the individual, family and society, such as the imposition of zakat and the desirability of alms urging endowments and encouraging work and investment through various means, the most important of which are Islamic financing mechanisms; Which can achieve a kind of social justice if applied correctly, and can limit the emergence of classes on a material basis among members of society, and in this paper a study of the reality of specific tools of Islamic economics, which are represented in (zakat - endowment - Islamic finance) in the Gulf countries The Arab world before and after the establishment of modern states, with practical models for the possibility of achieving comprehensive and sustainable development through these tools, As these tools can play a major role in addressing development problems in the Gulf and Arab countries; In the event that there is economic integration and safety in the mechanisms of zakat investment, endowment and Islamic financing, in a transparent and systematic manner based on strategic plans to achieve a better development reality for the Arab Gulf countries and the Arab world as a whole.