MGI's new Enhanced Reliability Firing Pin & Bolt were designed to increase detonation reliability when shooting the 7.62x39 round in converted AR-15 style rifles. The MGI Firing Pin & Bolt system closely mimics a true AK 47 firing system for greater reliability and control. In fact, Wolf Performance Ammunition highly recommends using the MGI Firing Pin & Bolt system when firing 7.62x39 ammo.
For many years, shooters have been trying to increase the reliability of their 7.62 AR's. There have been many attempts ranging from removing metal from the rear of the bolt, or from the flange of the firing pin, in an effort to get more penetration into the harder primers used in many 7.62 type rounds. In truth, the problem was not so much a matter of penetration as a matter of displacing enough mass in the primer to insure detonation.
MGI has combined a harder firing pin with a magnafluxed mil-spec bolt and D-fender D-ring to increase extraction reliability.
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