This phrase describes a specific aesthetic modification applied to a popular semi-automatic rifle. It indicates the AR-15 platform featuring a blue camouflage pattern on its components, often the receiver, handguard, and stock. For example, an individual might specify they own an AR-15 with a hydro-dipped finish exhibiting a blue-toned camouflage design.
The application of this particular color scheme and pattern can serve multiple purposes. Beyond purely aesthetic appeal, customized finishes can offer a degree of personalization and differentiation. Camouflage, even in non-traditional colors, may provide a subtle level of concealment in certain environments. Historically, modified firearms finishes have reflected trends in military, law enforcement, and civilian markets, often mirroring popular styles and technologies.