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 2925-01-030-3598
NSN 6240-00-681-2795
NSN 6240-00-272-8601
NSN 5999-01-359-1973
NSN 5965-01-408-5990
NSN 6645-01-055-5465
NSN 6320-00-731-6134
NSN 6685-00-616-0697
NSN 6220-00-993-7478
NSN 6645-01-649-5069
NSN 2925-00-233-5644
NSN 6150-00-371-4620