This is a factory replacement magazine for the Ruger Mark III and Mark IV chambered in .22 Long Rifle. It is constructed of E-Nickel (Electoless Nickel Plating), to provide protection from wear and abrasion, resistance against corrosion, and to create a stronger, high-quality finish.

Caliber: .22 LR

Capacity: 10 rounds

Finish: E-Nickel

Material: Steel

Fits: Ruger Mark III & Mark IV pistols