The GTA Online Gunrunning update was added to GTA in 2017, allowing players to access many new military features and business to get big money. The update brings huge bunkers into the GTA world for players to buy and make it the center of their new criminal enterprise.

The GTA Online Gunrunning update allows players to access many new military features and business

But to invest in this kind of business, you will need a lot of money. And you still might screw up and ended up losing your money if you don't do it right. The Bunker is indeed a really hard operation that it divided fans with how difficult it is to make things right.

Here is our completed GTA 5 bunker research, manufacturing guide so you can understand how it works and make a load of money from your Bunker.

Buy A Bunker

First, to get into this business, you need to buy yourself a Bunker first. But not anybody with money can buy the Bonker. You have to be either a VIP, CEO, or Biker Club President in order to buy a Bunker.

The Bunker will be your base for all your Gunrunning missions and activities. Your Bunker has an HQ section, a weapon workshop, a garage bay for Mobile Operations Center (MOC), and areas for manufacturing and researching.

You can also add a shooting range, a gun locker, and choose the style for your own Bunker. The three best options for Bunker are Chumash, Route 68, Canyon.

Raton Canyon

Raton Canyon is one of the cheapest Bunker in GTA ($1.45M) out of the 11 options. Still, it is one of the best options because it is located in a location surrounded by mountains so you will safe when taking off with your aerial vehicles.

Raton Canyon is one of the cheapest Bunker in GTA ($1.45M) out of the 11 options

It is quite close to resupply missions and far away from potential dangers.

Chumash

While Chumash ($1.65M) is more expensive than Raton Canyon, have less protection, and is a more popular choice, it is close to the city. It would be very convenient for people who do many other businesses and activities in the city.

Chumash Bunker is a great option for people who need to travel a lot

Route 68

Not many players like the Route 68 Bunker but it does have its charm. It is a place for players who want some actions because the Sandy Shores area has several Bunkers close to each other. You will likely get attacked by other players when you get out of your Bunker.

GTA 5 Bunker Research Guide

In the Bunker, you can assign staff to do research on new projects such as armor and weapons. There is a total of 51 projects and you can only do 1 project at a time. The GTA 5 Bunker research time for 1 project is from 4 hours to 6 hours. That is a total of about 200 hours to unlock all of them. Also, you can't control which project to research because it will be randomized.

The research bar has 60 points and the points will increase by 1 every 5 minutes. That makes 8.5 hours for the bar to be filled to 100 points.

If your Bunker is fully upgraded, it will only need 3.5 minutes to generate 1 point so it only takes 3.5 house to fill the entire bar.

Bunker with no upgrades Fully upgraded Bunker
Use 1 research points every 2.5 minutes Use 1 research points every 3.5 minutes
Need 4 hours 10 minutes to use all supplies Need 5 hours 50 minutes to use all supplies

You can also finish your research immediately by using Fast Tracking and pay a certain amount of money. In order to research a technology without research points, you need to spend $225,000.

GTA 5 Bunker Manufacturing Guide

Apart from researching, you can also manufacture weapons, using your supplies, to sell later. This procedure is also affected by how well-developed is your bunker.

You can produce weapons to sell and make profits
Bunker with no upgrades Fully upgraded Bunker
Generate $30,000 per hour Generate $60,000 per hour
Need to resupply every 1.5 hours Need to resupply every 2.5 hours
Need 16.5 hours to create the maximum amount of weapons Need 16.5 hours to create the maximum amount of weapons
Need $5,000 ($7,500 outside of Blaine County)  to create 1 weapon Need $7,000 ($10,500 outside of Blaine County)  to create 1 weapon
Price for selling maximum amount of goods: $550 - $750,000 (depends on location) Price for selling maximum amount of goods: $700 - $750,000 (depends on location)

GTA 5 Bunker Supplies

A Supply bar has 100 units. You can buy 20 supply units at a price of $15,000. You can pay $75,000 to completely fill the bar.

You can also get supply units by stealing supply units in missions and get a chance to receive 20 supply units instead of 20.

You can do missions and steal supply units

These missions are often simple such as getting to a place in a certain amount of time, losing the police,... There some hard missions such as assault Humane Lab or steal a tank.

An upgraded Bunker will use supply more efficiently so you don't have to refill it constantly and do other stuff.

Also check out: GTA 5 Nightclub Warehouse Management Guide - GTA Online Guide