Shop › FORTIS REV II FF RAIL 15.3" MLOK BLK FORTIS REV II FF RAIL 15.3" MLOK BLK $235.55 Fortis Manufacturing, Inc. Rev II, 15.3" Free Float Handguard, M-LOK, Fits AR-15, Black REV-II-15_ML Quantity: Add To Cart Added! Fortis Manufacturing, Inc. Rev II, 15.3" Free Float Handguard, M-LOK, Fits AR-15, Black REV-II-15_ML