SIGHT BLACK | Sinclair Intl

Convenient take-along jet black spray that stops glare! Great for hunting, skeet, trap and target shooting. Sight Black gives a velvety, flat black coating to barrels, sights and other metal surfaces. Dries instantly and is harmless to precision sights and all finishes.

Big Book Catalog, Issue:67, Page:302
Sinclair, Issue:4B, Page:217