SG553

The SG553 is a a shortened version of the SG550. It fires the 5.56x45mm NATO bullet from a 20 or 30 round magazine at 700 RPM. the LB version sports a slightly longer barrel.

Battlefield 3
the SG553 LB was listed on the four page fact sheet released by EA at Gamescom. Nothing is known about it's in game performance.