PDW-R

The PDW-R is a compact, bullpup-style 5.56x45mm carbine being developed by Magpul Industries. Although still in development, it has garnered some attention, largely due to its "futuristic" appearance. The system consists of a gas-operated bullpup intended to replace some submachine guns, M9 pistols and M4 Carbines in an ultra compact firearm.

Battlefield 3
The PDW-R is a PDW in Battlefield 3. It was first seen in the 4 page fact sheet from EA.

Singleplayer
It is used by enemies during the campaign in Kaffarov, in the dark room prior to the target range equipped with various optics and Tactical Flashlight

Co-Op
It appears during the Co-Op campaign in Hit and Run.

Multiplayer
It's an all kit weapon unlocked at level 32, belonging to the PDW section. The weapon possesses a moderate rate of fire and moderate kick, as well as the same close-range damage as most of the rifles and carbines, but a lower damage than any of those at 12.5 per round. It has the same rail-mount iron sights as the other western weapons which lack integrated ones.