![7 62x39 AR-15 (AR47) Upper: Common Questions [Enhanced Firing Pins, Steel Case Ammo, Mags, & More]](https://1a-1791.com/video/s8/1/7/D/W/t/7DWtb.oq1b.2-small-7-62x39-AR-15-AR47-Upper-Co.jpg)
7 62x39 AR-15 (AR47) Upper: Common Questions [Enhanced Firing Pins, Steel Case Ammo, Mags, & More]
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