The call was made by the Rangers Supporters Trust, which wants to buy shares in the side on behalf of fans when they go on sale in the coming weeks.
Chief executive Charles Green hopes to raise up to £20 million of new investment with an initial public offering and is said to be backing the "Buy Rangers" campaign.
Shares are to be sold at a fixed price of £125 each and the Rangers Supporters Trust see the cash generating move as a golden opportunity for fans to collectively own part of the club.
Under the scheme, potential purchasers will only be allowed to buy up to four shares each, with a minimum outlay of £500. Trust officials recognise not every fan can afford that level of investment but are hoping individual supporters will back a scheme which will still enable them to buy into the Ibrox outfit by uniting with fellow fans and pooling their financial resources.
Chairman Gordon Dinnie today said: "This is a great opportunity for fans to invest together and have a meaningful say in the future of our club.
"The more money invested, the stronger our collective voice.
"Investing in Buy Rangers is an opportunity for fans to unite in pursuit of a common objective and at a price more affordable than the £500 minimum required to purchase shares individually."
He added: "By harnessing our collective passion, this initiative can provide us with the voice required to have a real say in the strategic development of our club. Our voices should be heard both on the terraces and inside the club."