Favored by tactical shooters and volume target shooters across the globe, the Ruger-57™ 5.7x28mm 20-Round Magazine 2-Pack is a genuine Ruger® factory magazine, featuring a durable black oxide-finished steel body with numbered witness holes for quick, visual round counts on the fly. The high-tensile steel spring and polymer follower ensure smooth, reliable feeding. What’s more, the precision-engineered design provides a sure fit for dependable, field-ready performance you can depend on. Plus, the removable polymer floor plate offers a flush-fit profile for snag-free carry, as well as simple disassembly for quick cleaning and maintenance. Compatible with Ruger-57 pistols and Ruger LC carbines. Made in USA.