U4GM's COD MW4 MAR-9 Apex Guide

Andrew736

The MAR-9 does not look like a close-quarters rifle when you first pick it up. It is a 7.62 NATO marksman rifle, built around controlled semi-automatic shots and steady aim. In the Modern Warfare 4 Open Beta, though, it has another side. Players who enjoy experimenting with loadouts may want to keep an eye on MW4 Bot Lobbies while working towards the rifle's unusual conversion, because the MAR-9 Auto turns a careful precision weapon into something far more aggressive.

Start With the Rifle You Already Have

There is no separate challenge chain before you can use the MAR-9. Open Create a Class, move into Marksman Rifles, and place it in a multiplayer loadout. That is all it takes to begin. The rifle is available from the start of the Beta, so every match can contribute towards its weapon level. This matters because the required milestone is high, and waiting to unlock the gun would only slow the process.

What the Level 67 Goal Involves

The MAR-9 Auto is tied to weapon progression rather than a one-off task. You need to reach level 67 with the rifle. That means using it regularly, landing shots, and staying involved in matches even when the pace feels uncomfortable. Core 6v6 playlists offer plenty of target opportunities, while Kill Block and Ground War: Combat Outpost can suit players who prefer larger fights. Do not force every engagement at point-blank range. Let the rifle work at the distance where its heavy rounds feel most dependable.

Equip the MAR-9 through the Marksman Rifles menu.
Play with it often to build weapon experience.
Reach weapon level 67.
Open the Gunsmith and choose the Apex slot.

Stage	Player action	Why it matters
1	Equip the MAR-9	Progress begins immediately
2	Use it in Beta matches	Weapon experience increases
3	Reach level 67	The MAR-9 Auto becomes available
4	Apply it in the Apex slot	Automatic fire is added without taking a regular slot

Why the Apex Slot Changes the Build

Once level 67 is reached, visit the MAR-9 progression tab and open Gunsmith. The MAR-9 Auto appears as an Apex Attachment, and it uses the dedicated Apex position rather than one of the usual attachment spaces. That leaves room for an optic, barrel, grip, or other familiar choice. It is a useful detail, especially if you like tuning a rifle around recoil control and sight speed instead of giving up a normal slot for the conversion.

How the Automatic Version Plays

Bruen's in-game modification changes the MAR-9 from semi-automatic to fully automatic fire. The rifle can now keep pressure on a target, with the force of its 7.62 NATO ammunition still intact. Recoil becomes more important, so firing in short bursts may feel better than holding the trigger down at long range. Up close, however, the extra fire rate gives the weapon a fighting chance against faster guns. The Open Beta ends on September 1, 2026, and the full game arrives on October 23, 2026, leaving players a clear window to test the setup and buy MW4 Bot Lobbies if that suits their practice routine.