The FN 15 Military Collector Series M4 and M16 bring to market military replica rifles made to FNs exacting specifications. The semi-automatic rifles are chambered in 5.56x45mm NATO and feature M4 -profile 16 and 20-inch 1:7 RH, button broached and chrome-lined barrels, respectively. Each UID-labeled lower receiver is equipped with an ambidextrous selector switch, just like its select-fire big brother Mfg: Fn
