FN Herstal M249/M249S Black Polymer 500 M27 Links Included 200 Rounds 200RD. 56mm ammunition for use with the M249S or M249 variants and make sure you always have an extra belt or box ready for the range. Specifications for FN 56471 M249/M249S 200rd Black Polymer 500 M27 Links Included: Manufacturer: FN America Color: Black Fabric/Material: Polymer Magazine Capacity: 200 Round Caliber: 5.56x45mm NATO Gun Model: M249 SAW FN 56471 M249/M249S 200rd Black Polymer 500 M27 Links Included What firearm models does the manufacturer say FN 56471 M249/M249S 200rd Black Polymer 500 M27 Links Included is compatible with? The manufacturer suggests that FN 56471 M249/M249S 200rd Black Polymer 500 M27 Links Included is compatible with M249 SAWFN Herstal M249/M249S Black Polymer 500 M27 Links Included 200 Rounds 56471-200RD