I have an FN SCAR 16S semi-automatic rifle in 5.56 NATO. Serial number- L1C10362. This 16S features a non-reciprocating charging handle and comes with two magazines, owners manual, and various parts. The FN SCAR 16S is the semi-automatic version of the US Military’s MK 16. Light, fast-handling and quick shooting, the FN SCAR 16S is chambered in 5.56x45mm and features a free-floating, cold hammer-forged MIL-SPEC barrel with chrome-lined bore and chamber. Fully-ambidextrous operating controls instantly adapt to any shooter and any shooting position.