GTA Online is riddled with random events and collectibles. There is enough content for players to sink in hundreds of hours and still be left with more to do.
Rockstar Games has once again given players a new collectible that has been out for quite some time. Unfortunately, many thought it would be added during the game's inception over a decade ago, but that was not to be.
We're talking about the Service Carbine rifle, also known as the M-16, which has been added now, nearly a decade after GTA 5's original release. It was originally used in the game's promotional art and is now available for players to use in GTA Online.
Rockstar Games has added two possible methods for players to obtain the new weapon. The first is by purchasing it from the agency by spending almost a quarter of a million dollars. And the second is to go on a hunt for the five gun pieces that are scattered across the map.
In this guide, we will discuss both the methods in detail and how you can obtain this weapon. While the purchasing method is straightforward and a much better route for veteran players, it is more complex for newer players due to their likely lack of in-game money.
So, for newer players, we recommend hunting for the components and then assembling their free Service Carbine.
Purchasing Service Carbine
The Service Carbine, or the M16, is easily bought from your Agency's Requisition Officer. You can find him on the second floor of the Agency building.

Unfortunately, you need to purchase the Agency to unlock the Requisitions Officer. This basically makes the Service Carbine even more expensive. This is because not only are you paying for the Agency to get the weapons shop, but also paying for the weapon itself. And none of the Agencies are available for less than $2 million.
You can purchase the Service Carbine rifle for $370,000 from the Requisitions Officer. Note that in the image it shows $351,500 because of a 5% discount that was on-going at the time.