The 30-round, Extreme Duty 5.56 Polymer Magazine from Mission First Tactical utilizes the next generation of long-glass-fiber polymer to provide a magazine that is 50-percent stronger and three times more impact resistant than traditional glass-filled nylon. With front and rear surfaces ribbed for a better grip, a USGI-spec stainless-steel spring, a four-way anti-tilt self-lubricating follower and an oversized bolt catch, this is a magazine designed around easy accessibility, and lasting longevity. Though obviously intended mainly for the AR-15/M4 platform, Mission First Tactical assures its compatibility with a wide range of differently-platformed firearms. Boasting an MSRP of only $12.99, which includes a lifetime warranty, the Extreme Duty 5.56 Polymer Magazine is priced extremely competitively with the rest of the market. For more on this magazine or other Mission First Tactical products visit missionfirsttactical.com.