AK-A5 is a 30-rd magazine designed for the AK-74 rifle in the caliber of .223/5.56x45mm. The magazine body and follower are constructed of a proprietary DuPont Zytel based polymer to ensure a long service life.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