Spartan117gw gets a the new FN Herstal Five Seven CO2 Blowback Pistol being distributed by Spartan Imports for a review. This is the Marushin FN 57 which is made to accept the CO2 magazine and is fully licensed from FN Herstal. For those who don't like plastics, this one is made of Polymer but is actually a rigid pistol. Watch the full review below to find out the pros and cons in having this pistol.