Best M15 Mod 0 Attachments in Call of Duty: Black Ops 7

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Call of Duty: Black Ops 7 has arrived, introducing a smooth and quick movement system alongside the fast-paced gameplay players love. With this new setup, players around the world will find the best weapon in the game almost immediately after it starts. In fact, this year, players identify the top weapon within seconds—the M15 Mod 0—which is widely considered the best gun in the game and the first assault rifle available to players.

While it’s common for players to start with strong weapons in Call of Duty, it can be frustrating that everyone begins with a very powerful gun from the start. This makes trying out other weapons feel less exciting. Still, if you want to make an already great gun even better, you’ll need to unlock some attachments first.

How to Upgrade the M15 Mod 0 from S-Tier to God-Tier

It’s no secret that the M15 Mod 0 is one of the best weapons in Black Ops 7—even before adding attachments. Since it’s the first assault rifle you get, you can level it up early and make it even more lethal, making it a popular choice in multiplayer matches.

This rifle can typically kill with five shots at close to mid-range and six shots at longer distances. With the right attachments, you can extend its effective damage range and improve its accuracy, making it easier to eliminate enemies quickly and without much effort.

Best Attachments for the M15 Mod 0

Attachment	Pros & Cons
LTI Mini (Optic)	Offers better aiming precision at mid and long ranges. Although the iron sights are decent, this sight helps you track targets more easily.
RL-5.56 Brake (Muzzle)	Controls recoil and makes shooting the first shot easier to manage. It resets the recoil pattern faster and improves vertical recoil control—great for accuracy.
16.5″ Fusion (Barrel)	Increases damage range, making long-range kills more consistent with five shots to the body. Also reduces the need to lead targets as much.
Ironhold Angled Grip (Underbarrel)	Significantly decreases aiming sway and improves horizontal recoil control, keeping shots steady whether moving or stationary.
Caravan-H2 Grip (Rear Grip)	Further reduces recoil and stabilizes vertical control, helping the weapon become a laser beam at any range.
Empty (Magazine)	The default magazine holds 30 rounds, which is usually enough. It’s better to leave it empty unless you’re using the Gunfighter Wildcard, in which case a larger magazine like Mayday Extended Mag works fine.
Empty (Stock)	Best to leave stock empty unless you’re choosing Gunfighter Wildcard, then options like Telescopic or Intervention Stocks are good.
Empty (Laser)	Not necessary; the standard sights are fine, so avoid wasting this slot. Use this space for other attachments instead.
Empty (Fire Mods)	Usually left empty unless using Gunfighter Wildcard; in that case, Buffer Springs can help control recoil further, making shooting even more precise.

Pro Tip: The M15 Mod 0 is accurate and powerful even without attachments. You don’t need to add extra gear unless recoil control feels off. If recoil is an issue, Swap out the rear grip for Buffer Springs to improve stability and conserve your Wildcard slot for other perks.

Recommended Build

Slot	Equipment & Attachments
Primary Weapon	M15 Mod 0 with LTI Mini, RL-5.56 Brake, 16.5″ Fusion, Ironhold Angled Grip, Caravan-H2 Grip
Secondary Weapon	Velox 5.7 with Greaves 5.7 Narrow Brake, 7.8″ Redwell T-Arrow, Serpens Fast Mag, RDW-12 Fast Grip, Accelerated Recoil System
Wildcard	Perk Greed
Field Upgrade	Trophy System
Tactical	Stun Grenade
Lethal	Semtex
Perk One	Ninja
Perk Two	Fast Hands
Perk Three	Cold-Blooded
Perk Greed	Ghost

Note: The grenades and field upgrade are less crucial than your secondary weapon and perks. Feel free to customize those slots as you prefer. Prioritize perks that keep you hidden, silent, and undetectable—key for catching opponents off guard.

This setup allows the M15 Mod 0 to perform exceptionally with just five attachments, freeing your Wildcard for an extra perk. This keeps you off enemy radar and silent when moving, giving you a huge advantage in map control. While you can choose to run Gunfighter or other Wildcards, this build offers the best balance of power and stealth, helping you avoid Scorestreaks and perks that detect footsteps.