Gary Hinson shares what he thinks of the BOLT Airsoft SWAT TAC RAIL BRSS. This is part of the SWAT series from BOLT Airsoft based on the MP5 SMG design and features Bolt Recoil Shock System, or simulated blowback and recoil features for an AEG. The BRSS is the enhanced version which you can turn on and off and has 8mm bearings.