MRC:
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.FEAT
Special Features:
Equipped with a 635 nm laser diode that is used to identify the center of the weapon bore for purposes of zeroing military caliber weapons; hazard information uses a class iiia visible wavelength, 635 nm, laser; windage and elevation knobs protected from front and rear impact; windage and elevation are adjustable in 0.4 milliradian click increments; supplied with interchangeable submachine gun, rifle and pistol borerod assemblies