Accuracy/precision screening of this barrel was performed following a two hundred round break-in time period. All taking pictures was accomplished from my bench-rest set-up following my usual protocol. This is called carrier tilt. The ALP allows the working rod to wiggle to correct for your downward strain on the bolt https://kac-m4-rail86295.wssblogs.com/29565397/rumored-buzz-on-kac-drop-in-rail