FN America FN PS90 Rifle Magazine 5.7x28mm 50 Round Smoke 1 Pack Polymer 50RD. It is constructed of polymer with a black finish. Specifications for FN America FN PS90 5.7x28mm 50 Round Rifle Magazine: Manufacturer: FN America Color: Translucent Smoke Fabric/Material: Polymer Magazine Capacity: 50 Round Caliber: 5.7x28mm Gun Make: FN Herstal Gun Model: FN PS90 Package Contents: FN America FN PS90 5.7x28mm 50 Round Rifle Magazine What firearm models does the manufacturer say FN America FN PS90 5.7x28mm 50 Round Rifle Magazine is compatible with? The manufacturer suggests that FN America FN PS90 5.7x28mm 50 Round Rifle Magazine is compatible with FN PS90FN America 3810110093-50RD: FN PS90 Rifle Magazine 5.7x28mm 50 Round Smoke 1 Pack Polymer