GTA Online Weekly Update September 17 to 23: Gunrunning Bonuses and a Free Bunker
Week three of the Business Rivalries event switches to Gunrunners with a free Grapeseed Bunker, 2X on Bunker Research Missions, the Pegassi Horus now available to all players, and the last chance to earn the monthly free car.
The Business Rivalries month-long event rolls into its third week as GTA Online shifts from Motorcycle Clubs to Gunrunners. Running from September 17 to 23, the update puts illegal arms operations at the centre of the week’s bonuses and rewards — and opens the door for players to grab a free Bunker before October’s launch window closes in on them.
Free Grapeseed Bunker and Arms Operation Bonuses
The headline item this week is a free Grapeseed Bunker, available to claim from Maze Bank Foreclosures at no cost while the update is active. For players without a Bunker, or those who missed earlier free-property windows, this represents the cheapest possible entry point into the Gunrunning supply chain.
This week’s multipliers are built around the Bunker workflow:
- 2X GTA$ and RP on Bunker Research Missions
- 2X Research progress on Bunker Research Missions, effectively doubling the speed at which Bunker modifications and weapons unlock
- 2X GTA$ on Ammu-Nation Contracts
- 2X GTA$ on Safeguard Deliveries
Completing the Weekly Challenge — finishing three Bunker Research Missions — pays out GTA$1,000,000 and earns the Camo Ammu-Nation Sweatsuit.
Pegassi Horus General Release and This Week’s Discounts
The Pegassi Horus (Super class) is now available for all players from Legendary Motorsport at $2,810,000. GTA+ members had early access via The Vinewood Car Club in prior weeks; the general release opens it to the full player base.
Discounts run deep this week across a wide range of vehicles. The Pfister Astron Custom leads at 70% off, and overall seventeen vehicles have been reduced by up to 70%.
At the Diamond Casino, the Lucky Wheel podium features the Dominator ASP this week. The Prize Ride is the LSCM Jester RR, earned by placing in the top three in Stunt Races three days in a row.
Last Guaranteed Chance for the Monthly Reward
The Business Rivalries event requires players to complete at least one Weekly Challenge in any three of the four event weeks to claim the Penaud La Coureuse (Sports class) with a complimentary HSW upgrade, collected during the September 24 to 30 closing window.
With weeks one and two already behind it, week three is the last guaranteed opportunity for players who missed either of the first two challenges to secure their third qualifying completion. Players who completed either week one or week two still have this week and week four to work with — but week four’s challenge will have no safety net.
GTA 6 launches November 19, 2026 — eight weeks away — making Business Rivalries one of the final large-scale monthly events before the series moves to its next chapter.
Sources: Rockstar Newswire, RockstarINTEL, GTA Boss, PCQuest.