Accuracy International's distinctive-looking bolt guns are known to tactical shooters around the world as accurate and extremely well-made precision rifles, but AI once had the less-flattering reputation of being slow or altogether absent in the customer-service department.
The SIG556 resembled the SG551 LB, a carbine variant of the SG550 designed to accept a bayonet. While the SIG556 featured elements of its Swiss counterpart—such as a full-length gas piston system, pressed-steel upper receiver and similar overall configuration—it differed in some significant ways.
This new rifle, the FNAR, is a semi-automatic 7.62x51 mm precision rifle designed to offer great performance at a higher rate of fire than a comparable bolt-action rifle. The FNAR's designation, which stands for "FN Automatic Rifle," may at first seem to be a bit of a misnomer as it is a semi-automatic rifle, but it makes sense once you understand the basis of the design.