New England Patriots fans can get their hands on officially licensed AFC championship clothing and merchandise immediately after Sunday’s game if the team pulls out a win against the Denver Broncos.

Modell’s Sporting Goods, Dick’s Sporting Goods and Sport Authority stores will stay open as long as there’s customer demand after the 3 p.m. game ends, or until supplies last. Modell’s and Dick’s then will reopen at 6 a.m. Monday, while certain Sports Authority stores will open at 7 a.m.

Modell’s already had the Pats merchandise on hand yesterday — a roughly $500,000 gamble, according to CEO Mitch Modell.

“We took a tremendous risk, but you know what? People expect us to have the merchandise,” Modell said. “We printed up everything: hats, shirts, T-shirts, novelties, pennants — you name it — for men, women, kids.”

The products will be available at Modell’s stores in Massachusetts, Rhode Island and New Hampshire, and all Dick’s in Massachusetts. Sports Authority stores in Watertown, Somerville, Braintree, Woburn, Danvers, Mansfield, Framingham and North Milford will have the extended hours.

“The fact that it’s an early game is great for the customers,” Modell said. “They won’t have to wait until midnight to shop. When (the Pats) beat Peyton Manning … and knowing that New England will come back to New York to play — there are just so many storylines on this thing, it will just get fans crazy.”

Should the Patriots lose, Modell’s will send the merchandise to a third-world country as a donation, according to Modell.

“We’re not allowed to sell it,” he said.