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 5920-01-410-7343
NSN 5965-00-461-2594
NSN 5920-00-799-8851
NSN 5990-01-598-8769
NSN 4140-00-177-0463
NSN 5996-00-097-6713
NSN 5895-01-657-3800
NSN 5920-01-532-4452
NSN 7035-01-479-5268
NSN 6645-00-664-4665
NSN 2925-00-172-9264
NSN 5985-01-471-9432