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 5996-00-213-7121
NSN 2925-01-269-3861
NSN 5835-00-897-3123
NSN 6685-00-952-0782
NSN 5915-01-351-7230
NSN 6135-00-519-1325
NSN 5965-00-653-4782
NSN 5998-01-289-9701
NSN 6145-01-650-1791
NSN 5895-00-524-2319
NSN 6620-00-145-6777
NSN 5999-01-535-6570