An item which slides up and down a rear sight's leaf. it has a u or v shaped notch or aperture which can be positioned on the leaf to adjust the sight for the range at which the target is located.
Classification: Parts and accessories for military rifles of heading 9301
NSN 5905-01-036-7092
NSN 5965-00-518-0958
NSN 6145-01-101-4900
NSN 5975-00-835-7753
NSN 5999-00-465-4971
NSN 6240-00-051-5163
NSN 5985-01-399-1789
NSN 6135-00-078-9931
NSN 5999-01-660-7677
NSN 5910-00-333-0329
NSN 5905-01-380-6757
NSN 6150-01-371-2446