223REM/5.56X45MM | POLYMER
PROMAG COLA18B Standard 30rd 223 Rem/5.56x45mm Fits AR-15/M16 Black DuPont Zytel Polymer
This replacement or spare magazine is compatible with your AR-15, M16. It is constructed of DuPont Zytel polymer with injection molded mag follower and mag spring formed from chrome silicone wire. Made in the USA.
A 30-rd magazine for AR-15 / M16 rifles and carbines. 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. New and improved design!
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