The ProMag® FN® SCAR 17S .308 / 7.62x51mm 50-Round Drum Magazine features over-molded stamped steel feed lips and a precision-engineered magazine catch for a snug, reliable fit, while the DuPont® Zytel™ polymer body delivers exceptional durability in any environment. The heat-treated chrome silicon wire internal spring and injection-molded polymer follower ensure smooth, reliable feeding performance. Better yet, this magazine is backed by ProMag's legendary lifetime warranty. What are you waiting for? Order today! Made in USA.