ProMag Standard 42rd 223 Rem/5.56x45mm Fits AR-15/M16 Tan DuPont Zytel Polymer COLA22B

The magazine body and follower are constructed of a proprietary DuPont� Zytel� based polymer to ensure a long service life. The springs are made from heat treated Chrome-silicon wire for increased reliability and smooth feeding. Desert tan color blends with desert environment and desert tan / coyote AR-15 accessories.