The Duke Arms Company assault rifle, often referred to as the Duke M4A1, is set to appear in GTA 6.
This weapon is heavily inspired by the real-life M4A1, a fully automatic variant of the M4 Carbine, known for its reliability and versatility in combat situations.
The rifle was first revealed in a short video clip showing Raul Bautista engaged in a police chase after robbing Sinfrontera National Bank, as seen in Trailer 2.
Visually, the Duke M4A1 is similar to the Duke Carbine, but features a shorter barrel, different stock, and modified sight, suggesting it may be a customized variant of the standard Duke Carbine.
While it’s not yet confirmed, both weapons could share the same base model with distinct modifications for different combat styles.
The rifle proudly displays the Duke Arms Company logo engraved above the magazine, highlighting its in-game manufacturer and connecting it to the Duke Carbine lineage.

