Mbus, magpul back-up sight, rear gen 2
An item attached to the breech end and integral to a carbine, machine gun, pistol, rifle, or the like. It may be a fixed or adjustable cross blade with a u-or v-shaped notch or aperture, or it may have elevation and windage adjustment knobs, slides, and graduated scales and be provided with aperture disks.
Classification: Part and accessories of articles of headings 9301 to 9304, nesoi
NSN 6240-01-069-4711
NSN 5960-01-017-5449
NSN 5975-01-322-0479
NSN 5965-01-564-6654
NSN 5930-00-161-9160
NSN 5975-00-211-6047
NSN 5960-00-620-1205
NSN 5935-00-426-6559
NSN 5935-01-070-9038
NSN 6610-01-131-2636
NSN 6645-01-622-6161
NSN 5965-01-148-4979