The Marshall Grazing Incidence X-ray Spectrometer (MaGIXS) will observe the Sun in the 6-24 Angstrom wavelength range with 6 arcsec resolution along the 8 armin slit. The data will be used to determine the frequency of heating in the solar corona and the FIP bias in different hot coronal structures. This information can be used to discriminate between coronal heating mechanisms and fractionation mechanisms that cause the FIP effect. MaGIXS is composed of three subsystems : an X-ray telescope, a spectrograph, and a detector. The X-ray telescope optic will produce focused images on a slit; a slit jaw imaging system will be used for pointing and data alignment. The spectrograph consists of a collimating and re-focusing pair of corrective X-ray optics and a blazed grating. The detector is a low-noise, fast-readout camera. The alignment of the system will occur in stages, with the final alignment at the Marshall Space Flight Center Stray Light Facility.