Yeah...aperture sights have sorta split off into a separate full-fledged mental disorder at my house.
View attachment 339608 My avatar pic is an Anschutz 6702 with vintage Gehmann magnifying iris, mounted to an HW 55. Below are a couple of other individual favorites.
This early Diana sight can be used in two modes, for which this early model 50 has two separate mounting rails. Mounted to the forward rail at the breech, it's a normal open "notch" sight. But mounted to the rear rail with this simple eye disk attached, it also works as a peep. Note the "step" and numbered scale on the side of the sight, which tracks how many times you've rotated the 20-click elevation wheel.
View attachment 339616 This is a British Parker-Hale PH 16M, on a Webley Mk 3 rifle. The stout steel mechanism is screwed directly to the receiver and offset from the line of sight; the engraved elevation and windage scales are both visible from behind; and the tiny eye disk gives a minimal "ghost ring" sight picture - an ideal sporting peep sight. A unique detail is that the arm with the eye disk will flip rearward 90 degrees - you can keep the gun's open sight mounted and dial each unit in at a different distance.
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