GTA VI (Six) Personalized Ammunition, Rainbow Ammunition, Emoji Ammunitions (Smiley-Face Bullet Casings), Engraved Ammunitions,

(Author comment: I might have more to say on this later, this is a fun concept.)

A new concept to add to GTA VI (Six) that is not currently found in GTA Online, would be the ability for players to customize all of their ammunition.  GTA Online does not allow for the customization of any ammunition that the players use. Without ammunition, the game would be completely different. The ability to customize the ammunition would be an interesting and unique flair to GTA VI (Six) that would set it apart from GTA Online. 

(Disclaimer: this is a speculative concept, but it would be interesting to see in GTA Six Online.)

The players in GTA VI (Six) would have the option of customizing their ammunition with different colors, emojis, funny captions or mottos. GTA Online allows for weapons to have specialized skins and colors. GTA Online allows vehicle rims and vehicles to have special colors and skins. However, the ammunition, including the knives, bats, and other weapons have been left "untouched" by the Rockstar Games developers, in terms of any potential customizations that players can do to them.

An example of colorful ammunition is shown in the picture. The ammunition is for a shotgun. Presumably, the ammunition would be inserted into the weapon. The shotgun could have a rainbow-color "skin" on it, to compliment the colorful ammunition.  

 A rainbow-colored shotgun is shown in the image below. The image is from GTAGarage.

 An image of rainbow-colored shotgun shells are shown below.

The end result when the players in GTA VI (Six) fire their weapon is that the shell casing would be expelled from the shotgun, and the players would see the colorful shell casings exiting from the shotgun, as the casings land on the floor.

The smoke of the weapon firing would also be rainbow-colored, if the player is using rainbow-colored ammunition. The fire at the end of the shotgun barrel that appears as the shotgun fires a round, could also be rainbow-colored. This concept could be in GTA VI (Six) Online, since it is geared towards the players more than it is geared towards a GTA VI (Six) story mode version. 

Creating colorful or unique weapons is already in GTA Online. Creating colorful and unique skins for ammunition is not currently enabled in GTA Online. Colorful ammunition would allow the players to really add their personal signature to their GTA VI (Six) player profiles, which could create a very personal experience while they play the game.

Sample of rainbow-colored smoke is shown in the image below. This same colored smoke could be enabled for the players.

For players in GTA Online Six (GTA Six Online), if a player in GTA Online Six has the Rainbow Shotgun, and Rainbow Ammunition, then the shotgun should also create Rainbow Smoke at the end of the barrel, every time the weapon is fired. 

The flash of fire that is created when a weapon is fired can also be personalized with a rainbow color scheme. The players in GTA Online currently do not have the option to personalize their weapons with different colored end-of-barrel flashes of fire. The feature could work in GTA Six Online. The sample image below is a rainbow flame. 

The players should also be able to add emojis instead of colors. This way, the shell casing for a shotgun could have smiley faces on it, instead of a rainbow-color theme. Personalized mottos and special engravings for the shell casing would work in a similar way, with players being able to add a motto to their shell casing. The mottos and special engravings could be pre-defined by Rockstar Games.

I will try to "create" a few concepts of the personalized ammunition. Ultimately, having customizable ammunition in GTA Online, GTA VI (Six), and GTA Six Online would bring the ability to create a highly personalized experience with the weapons and ammunition of GTA, similar to how the players can customize their GTA vehicles.