Duke M4A1

This unknown Duke Arms Company assault rifle is a weapon that appears in GTA 6.

The rifle appears to be inspired by the real M4A1, a fully automatic variant of the M4 Carbine. It was revealed in a short video clip of Raul Bautista as battles with police, following the robbery of Sinfrontera National Bank shown in Trailer 2.

The Duke M4A1 appears similar to the Duke Carbine, though with a shorter barrel and a different sight and stock.

It is possible that both weapons are the same base gun with heavy customization, though this is yet to be confirmed.

The Duke Arms Company logo can be seen above the magazine, engraved into the rifle itself.