Detachment of the standard sight assembly found on many AR-15 style rifles is a common procedure for owners seeking to customize their weapon systems. This process typically involves specialized tools and techniques to ensure the preservation of the barrel’s integrity. For example, a properly sized armorer’s wrench and a heat source are often employed to loosen the extremely tight factory-applied fit.
This modification allows for the installation of alternative sighting systems, such as low-profile gas blocks and free-float handguards, which can offer enhanced accuracy and modularity. Historically, the standard fixed sight assembly was the default configuration. However, advances in firearms technology and the increasing popularity of optical sights and accessories have made the ability to change sighting systems a highly desirable feature for many rifle owners.