This magazine is designed for the AK-47 rifle. The magazine body and follower are constructed to ensure a long service life. The spring is made from heat treated chrome-silicon wire for maximum reliability and smooth feeding.ProMag magazines are designed utilizing modern precision injection molding of Mil-Spec polymer compounds. Every ProMag magazine is backed by a lifetime guarantee against manufacturer's defects. Features: Magazine body constructed of a proprietary DuPont Zytel based polymer Injection molded magazine follower Magazine spring formed from heat treated chrome silicone wire Made in USA