MAGAZINE G31 357SIG 10RD PKG PACKAGED Manufacturer Model Number: MF10031 Manufacturer: GLOCK Model: G31 Magazine Caliber: 357 Sig Type: Accessory-Magazines Item Type: Accessory Firearm / Accessory Capacity: 10 rd. Finish: Black Polymer Shipping Weight: 0.3 Feature: Magazine for G31 357 Sig Optic Adjustable Objective: false Optic Reticle Illuminated: false