Pro Mag Ruger P90 / P97 .45 ACP Pistol Magazine Steel Blue 8 Round RUG 03-8RD. The springs are precision wound using heat-treated chrome silicon wire. Bases and followers are injection molded from polymers selected for their durability. The result is quality consistency durability and reliability. Specifications for Pro Mag Ruger P90 / P97 .45 ACP 8-Round Pistol Magazine: Manufacturer: ProMag Gun Make: Ruger Gun Model: Ruger P90 Caliber: .45 ACP Magazine Capacity: 8 Round Color: Blue Condition: New Fabric/Material: Steel Features of Pro Mag Ruger P90 / P97 .45 ACP 8-Round Pistol Magazine Magazine body constructed of heat treated steel with black oxide finish Injection molded magazine follower Magazine spring formed from heat treated chrome silicone wire Package Contents: Pro Mag Ruger P90 / P97 .45 ACP 8-Round Pistol Magazine What firearm models does the manufacturer say Pro Mag Ruger P90 / P97 .45 ACP 8-Round Pistol Magazine is compatible with? The manufacturer suggests that Pro Mag Ruger P90 / P97 .45 ACP 8-Round Pistol Magazine is compatible with Ruger P90Pro Mag RUG 03-8RD: Ruger P90 / P97 .45 ACP Pistol Magazine Steel Blue 8 Round