M249 SAW Replica! The FN M249S Para is a civilian model of the M249. It comes chambered in 5.56 NATO It features a 16.1" barrel, a telescoping stock, an integral folding bipod, adjustable sights, a picatinny optics rail, and comes with one 30 round magazine and 200 standard disintegrating links. Own the newest addition to the Military Collector Series – the FN M249S® PARA, a semi-auto version of the currently contracted FN® M249 PARA. The PARA was designed for airborne, armored infantry and close quarters combat (CQC) operations with a shorter barrel and collapsible buttstock. It retains all of the features of the FN® M249 SAW and can be field converted back to the standard model configuration in just 30 seconds.