The Heckler and Koch MR556 A4 is the civilian expression of the HK416 — the piston-driven rifle that famously rode along on some of the most consequential special operations missions in history. This configuration wears an 11-inch barrel in 5.56mm and a gray finish, pairing HK cold-hammer-forged barrel quality with the short-stroke gas piston system that runs cleaner and cooler than direct impingement designs. German engineering, genuine HK416 lineage, and build quality that justifies the rollmark: for many collectors, this is the endgame AR-pattern platform.

This firearm ships to your chosen FFL dealer for transfer. Order online from Dawson Defense, an Arizona-owned licensed dealer and importer.