Nelahol Flip Up Sights BUIS
This guide covers the installation and initial zeroing of Nella Hall flip-up backup iron sights (BUIS) on a Picatinny rail. The process involves using an included Allen wrench to secure the sights and adjusting elevation on the front post and windage on the rear sight. The reviewer notes that approximately 10 rounds may be needed for initial elevation adjustment, and the sights held zero after a box of ammunition.











