This gun also features an auto-reload feature.

The gun features a kick-back feature where the slide actually kicks back and forth every shot (which can be disabled using a switch).

The gun features a directional pad and Start and B buttons beneath the barrel.

The gun also features an electronic voice that tells the shooter which firing mode the gun is in.

The guns featured on the series are real.

Newer guns feature a faster 1-14" twist in the .224 bore diameter.

Some low-level guns feature bayonets for mêlée combat, which form a substantial element of the game.

The gun also features an action button which is used to pull off special moves like hand to hand combat.

The gun features upper (ambidextrous) and lower magazine catch.

The gun features a crew of seven.