The Dual Pin Scope adopts the BulletProof pin technology found in our multi-pin sights and incorporates a single vertical pin with dual fiber optic aiming points. The Dual Pin is both lens and light ready without any additional adapters. It also comes with the option of a single alignment ring or a triple alignment ring for those archers looking for better accuracy in different lighting situations. Mounted on a 10-32 threaded bar, it fits all Hogg Mobb Series adjustable sights.