This is a 170mm 26-round 9mm Beretta 92 series extended magazine. Compatible with all Beretta 92 / M9 series 9mm pistols, this factory OEM 26-round extended magazine is a perfect option for self-defense, plinking, or competition use. Featuring high-strength steel construction with a corrosion-resistant blued finish, this Beretta 92 26-round magazine is built for rugged dependability and lasting service in harsh and demanding conditions.