This is a USED factory Sig P226 9mm 15-round magazine.
Sig Sauer’s P226 is the gold standard of combat pistols, trusted by dozens of military and law enforcement agencies from all over the world—including the U.S. Navy Seals. These used magazines offer a huge savings over factory new mags.
Available in three conditions:

Good – Expect mild to heavy finish wear, scratches and minor dings. Grease and/or grime may also be present.
Fair – Expect little to no finish remaining, minor pitting and rust, scratches and dings, grease and grime.
Poor – Expect little to no finish remaining, heavy pitting and rust, scratches and dings, grease and grime.

These magazines are sold AS-IS and cannot be returned for a refund or exchange.