Lee Shaver Hadley eyecup with a 10-32 thread will fit Browning BPCR 1885's, Kelley Soule sights, Marbles peep sights, Lee Shaver Soule Sights and Baldwin Soule sights. These adjustable eye cups 1 1/4" in diameter, have nine openings to choose from and a rubber o-ring around the rim to protect the comb of your stock. Due to the wide variety of sights on the market with different threads, be sure that the Hadley you purchase is correct before you install it. There will be no returns on damaged eye cups (cross threads etc.).