ProMag 20 Round .223 Rem/5.56 AR-15/M-16 Magazine, Black - COLA9B

This replacement 20-rd magazine is for AR-15 / M16 rifle and carbines. The magazine body and follower are constructed of a proprietary DuPont Zytel based polymer to ensure a long service life. Its springs are made from heat treated Chrome-silicon wire for increased 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 polymerInjection molded magazine followerMagazine spring formed from heat treated chrome silicone wireMade in USA