FLIR does not sell OEM products at a GSA discount. Discount pricing for OEM products is based on volume -- the higher the quantity, the lower the price.
This answer applies to Tau2, Quark2, PathFindIR II, Lepton, Muon, and Boson products.
Some select products within FLIR`s Surveillance and Detection lines of business (and SeaFLIR for Maritime) are on GSA.