Garand Thumb goes through the paces with the FN Herstal P90 PDWS in this video. A gun that has seen more use in sci-fi TV series such as Stargate and Battlestar Galactica, this PDW uses the FN 5.7x28mm round and is designed to be used in conjuction with the FN Five-seven pistol as the sidearm. Both are available in airsoft, with the P90 a favourite to use in CQB games.