The issue, which features a sultry, swimsuit-clad Jessica Alba on the cover, will carry an Austin Reed VIP discount card, charged with £50 to redeem against any suit purchased at Austin Reed stores throughout the UK.
In addition to the discount card the retailer is offering 10 GQ readers the chance to win membership to Q, its private members' club. Readers can enter their names in an online draw, from which 10 winners will be randomly selected.
Q is a new club on the third floor of the retailer's flagship Regent Street store, which has been launched to coincide with its 110th anniversary.
The club contains a bar, sofas and personal shoppers, and runs tasting evenings and seminars.
Jamie Bill, publishing director of GQ, said: "The perfect blend of style and substance, this collaboration continues our policy of shunning covermounts in favour of offering our discerning GQ readers significant value and access, in addition to the award-winning editorial the magazine delivers."
The November issue of GQ hits newsstands on 7 October.