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.
NSN 5920-00-060-3290
NSN 6650-01-264-3045
NSN 6110-01-174-9569
NSN 6685-01-466-3048
NSN 5999-01-502-6911
NSN 4140-00-019-1697
NSN 5999-00-148-4559
NSN 2925-00-724-9252
NSN 6240-00-518-2400
NSN 5965-00-791-0964
NSN 5998-00-871-9397
NSN 5950-01-407-8548