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:
Part assembly consists of one (l8nam) aperture sub-assembly, one (l8j1) rear sight base, one (l8j2) flip-up sight clamp, one (l8j3) detent, one (l8j5) windage screw, one (91794a835) clamp screw, one (l8j8) windage knob right, one (l8j12) windage knob left, two (76151604) roll pins, four (lrs-026) spring short detent/knobs, and two (lmp122) steel balls
