I have all sorts of peepers on my '86s, from bolt peeps to Williams FPs. All of 'em are very effective. I like the Lyman 21 side mount, but, my favorite is the 66WB, also a Lyman sight made for the 1886. Got one on the 45-90 and if it can hold up under that recoil it'll work for any application. It also fits the "vintage" look. I don't even try to use the tang sights for huntin', 'cause the old eyes can't pick up the target quick enough. The peeps are the way to go. 'Sides, the new guns are drilled for 'em.