For sale is a Sig Sauer SIG 516 semi automatic rifle in 5.56 NATO. Serial number- 21H000193. This SIG 516 is in great condition and comes with one 30 round magazine and folding iron sights. One of the most tested and proven weapons systems in the world achieves ultimate refinement with the introduction of the SIG516 rifle. With its chrome-lined, phosphated, military grade barrel and adjustable, four-position gas regulator, the SIG516 incorporates all of the most desirable mechanical improvements. Add to these a free-floating quad rail forend and barrel, and you have the most advanced, versatile AR-based rifle available. V2-K3-MI Barrel Length: 16 Bore condition: Excellent