ProMag Ruger-57 5.7X28mm 20 Round Blue Steel Magazine Stools and Chairs Internal cable routing to ensure

Internal cable routing to ensure a neat appearance once installed

Fixed or mechanical blades

Expandable Architecture

micro adjustable flow control valve

ProMag Ruger-57 5.7X28mm 20 Round Blue Steel Magazine Stools and Chairs Internal cable routing to ensureThe ProMag Ruger 57 5. 7X28mm 20 Round Blue Steel Magazine is a 20 round magazine that fits the Ruger 57 5. 7x28mm. It features an injection molded magazine follower and the magazine spring is formed from heat treated chrome silicon wire. ProMag's magazines are proudly made in the USA. 20 round magazine Fits the Ruger Ruger 57 5. 7X28mm Injection molded magazine follower Magazine spring formed from heat treated chrome silicon wire Made in the USA