This particular designation refers to a variant of the Colt AR-15 rifle designed for aggressive goal taking pictures. It sometimes incorporates a heavy barrel (HBAR) for elevated accuracy and lowered recoil, together with different options tailor-made for precision taking pictures, similar to adjustable sights or a flat-top receiver for mounting optics. These rifles are sometimes chambered in .223 Remington or 5.56 NATO.
The heavy barrel profile offers higher thermal stability, minimizing the affect of barrel heating on shot placement throughout prolonged taking pictures periods. This makes the rifle significantly well-suited for aggressive disciplines the place constant accuracy is paramount. Traditionally, these rifles performed a job within the popularization of aggressive rifle taking pictures, providing an accessible platform for each seasoned marksmen and aspiring opponents. The emphasis on accuracy and stability has additionally led to their adoption by some regulation enforcement and army models for specialised roles.