Marble’s Improved Tang Peep Sight Long Range Upright Blue

Upright posts for a Marble’s Improved Tang Peep Sight are interchangeable and of different heights to correspond with different shooting range distances. The approximate effective maximum distance for each upright post is as follows (model listed in product description): Short Range: 0-100 Yards Standard: 30-250 Yards Mid-Range: To 500 Yards Long Range: To 1000 Yards