AR Mag Lock and & 10rd mag for California Compliance
One of the most tested and proven weapons systems in the world achieves ultimate refinement in the SIG516 rifle. With its Nitride treated, military grade barrel and adjustable, four-position gas regulator, the piston-driven SIG516 incorporates all of the most desirable mechanical improvements. Add to these a free-floating forend, and you have the most advanced, versatile AR-based rifle available.
