GTA Online Gunrunning Bonuses Sept 17–23: Free Bunker

From September 17 to 23, 2026, GTA Online’s Business Rivalries event turns to Gunrunning: the Grapeseed Bunker is free at Maze Bank Foreclosures, Bunker Research Missions pay 2X GTA$, RP and research progress, and the Ammu-Nation Contract and Safeguard Deliveries pay double. The Weekly Challenge is three Bunker Research Missions for GTA$1,000,000 and the Camo Ammu-Nation Sweatsuit.

GTA Online Gunrunning week dates: September 17 to 23, 2026

Rockstar laid out the whole month in its Business Rivalries announcement on September 3, 2026. Each September week spotlights one business type, with a free property and 10X the usual Weekly Challenge prize.

Rockstar gives dates but no switch-over hour for these weeks, so none is converted here. The Gunrunning week is the third of the four.

How to claim the free Grapeseed Bunker

Open the Maze Bank Foreclosures site on your in-game phone or laptop between September 17 and 23 and the Grapeseed Bunker is listed at no cost. Rockstar’s wording is that the property is “free to claim this week at Maze Bank Foreclosures”. Upgrades and the other bunker locations are not part of the offer, so treat Grapeseed as the entry point: it is enough to run every mission this week rewards.

If you already own a bunker, do not trade it in just because Grapeseed is free. Rockstar’s support page on moving bunkers is explicit about what you lose: cached Supplies, manufactured Stock and any Research in progress do not move, so convert or sell them first. Bunker Expansions have to be added again from Maze Bank Foreclosures, and Equipment, Staff and Security upgrades have to be repurchased through the Disruption Logistics app. Compare the location against what you would be rebuying. Everything else in this guide applies either way.

Weekly Challenge: three Bunker Research Missions for GTA$1,000,000

The Weekly Challenge for September 17 to 23 is “complete three Bunker Research Missions”. The payout is GTA$1,000,000 plus the Camo Ammu-Nation Sweatsuit. Rockstar describes the September prizes as “10X the usual prize for completing Weekly Challenges”, which puts the normal rate at GTA$100,000.

There is a second reward riding on it. Complete any one Weekly Challenge between September 3 and 23, then log in between September 24 and 30, and you can claim the Penaud La Coureuse (Sports) free at Legendary Motorsport, with a complimentary HSW upgrade on PS5, Xbox Series X|S and PC (Enhanced). If you skipped the first two weeks, the September 17 to 23 research missions are your last chance to qualify.

Bunker Research Missions come from Agent 14 and, from September 17 to 23, pay 2X GTA$, RP and Research Progress on top of the challenge. Research is the slow part of owning a bunker; the doubled progress is the reason to run these missions now rather than later.

GTA V Bunker Research UnlockBunker research is the slow part of owning a bunker; the September 17 to 23 missions pay double research progress.From $16.90View offer

Every Gunrunning bonus this week

All of these are from Rockstar’s September 3 post and run September 17 to 23.

Rockstar’s announcement does not list a bonus on Bunker Sell Missions for September 17 to 23, unlike the February 2025 Gunrunning week that doubled them. Check the in-game bonus panel before you commit to a sell run rather than assuming either way. Community Series missions were announced as triple rewards “through September 23” on PS5, Xbox Series X|S and PC (Enhanced), which overlaps this week.

Discounts: 70% off the Pfister Astron Custom

The one discount Rockstar named for this week is 70% off the Pfister Astron Custom (SUV) at Legendary Motorsport on PS5, Xbox Series X|S and PC (Enhanced). The post says there are “a number of vehicle discounts” beyond that but does not list them; check the in-game websites for the rest.

Business Rivalries also runs Business Battles all month: fight for supplies in Freemode and deliver crates to earn the Six Figure Tee, Ride or Die Tee, Red & White Ammu-Nation Cap and Bourgeoix Tee.

What comes next: Nightclub week, September 24 to 30

The final Business Rivalries week moves to Nightclubs. The Elysian Island Nightclub is free from Maze Bank Foreclosures, Nightclub Management Missions give 2X Popularity, Nightclub Goods Missions and QuickiePharm Deliveries pay 2X GTA$ and RP, and the Imponte Arbiter GT (Muscle) is 70% off. The Weekly Challenge is selling GTA$1,000,000 across all businesses, which a stocked bunker can help with.

GTA Online bunker and money services

If the research grind or the cash target is the part you would rather skip, these are the GTA Online services we run.

GTA V Cash & Assets DropCash and assets delivered to your character; the September 17 to 23 Weekly Challenge pays GTA$1,000,000 by comparison.From $14.90View offer GTA V Rank BoostRP rank progress, which the doubled RP on research missions, contracts and deliveries also feeds this week.From $24.75View offer GTA V Money - PS5GTA$ balance for a PS5 character; other platforms are listed on the service page.From $79.90View offer

Frequently asked questions

Is the Grapeseed Bunker really free?
Yes. Rockstar’s September 3 post says the Grapeseed Bunker property is free to claim at Maze Bank Foreclosures from September 17 to 23.

Do Bunker Sell Missions pay double from September 17 to 23?
Not according to Rockstar’s announcement, which lists Bunker Research Missions, the Ammu-Nation Contract and Safeguard Deliveries. If a sell bonus appears in-game, it was not in the post.

How do I get the free Penaud La Coureuse?
Complete at least one Weekly Challenge between September 3 and 23, then return between September 24 and 30 and claim it at Legendary Motorsport. The HSW upgrade is included on PS5, Xbox Series X|S and PC (Enhanced).

Does the 10X Weekly Challenge prize continue after September?
Not confirmed. Rockstar described the 10X prize as part of the September Business Rivalries event.

Is there a GTA+ bonus running during this week?
Yes, but none of it is Gunrunning. Rockstar’s September 10 GTA+ post runs several perks past this week: 2X GTA$ on your first Cluckin’ Bell Farm Raid finale each week and 3X GTA$ and RP on Bike Service missions, both through October 7, plus 60% off Biker Business properties and upgrades and the monthly GTA$500,000 deposit.

Sources and update history

• Rockstar Games, Compete Across Entrepreneurial Endeavors in the GTA Online Business Rivalries Event, September 3, 2026
• Rockstar Games, GTA+ Members Enjoy One Week of Early Access to the New Pegassi Horus Supercar, September 10, 2026 (GTA+ perks running through October 7)
• Rockstar Games Customer Support, Moving Your Business To Another Bunker in GTA Online, last updated April 24, 2024

Update history: Published September 18, 2026. Facts last checked September 18, 2026 against the sources above.