Aperture disk. Small .040" aperature in large 5/8" disk fits RS57SML or RS57GPR. Special 7/32-40 thread .
Part Number: RS-57-DISK-2S
Availability: In Stock
Price: $9.99
Aperture disk, small, #2 fits Lyman RS-57-SML or RS-57-GPR sight. Large 5/8" diameter knurled disk is drilled with small .040" aperture for bright light conditions. You can easily enlarge this if desired.
Track of the Wolf, Inc.
18308 Joplin St NW
Elk River, MN 55330-1773

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