Duke Nukem 3D

The weapons seen in this VideoGame are:

Pribor-3B Assault Rifle

The machine gun in Duke nukem 3d seems to be similar to a Nordenfelt gun or is possibly a Soviet era Pribor-3B assault rifle.

'Handheld nordenfelt gun' as seen in the game.

'Handheld nordenfelt gun' under High Resolution graphics.

Remington 870 Defender

The shotgun is a black Remington 870 with a rear and front pistol grip.

Remington 870 Defender Shotgun with 'Tommygun' type front and rear pistol grips.