HK MR762 A4 Complete Upper Receiver 7.62x51mm NATO 13" Barrel

The HK MR762 A4 Complete Upper Receiver is an AR-10 platform upper for the Heckler and Koch MR762 lower receiver, chambered in 7.62x51mm NATO and 308 Winchester. It carries a 13-inch cold hammer forged steel barrel with a 5/8x24 thread pitch and a black anodized finish, and operates as a semi-automatic action.

The upper uses a closed gas system in place of direct impingement, which keeps hot carbon fouling and waste gases out of the receiver area. The assembly includes an HK Free Floating Rail System handguard, a forward assist, an extended convertible charging handle, an adjustable gas block, a complete MR762 bolt group, a tungsten-filled buffer, and a buffer spring. It ships in an HK soft case and fits only the MR762 lower receiver.

• Brand: Heckler and Koch
• Model: MR762 A4 Complete Upper
• Platform: AR-10
• Calibers: 7.62x51mm NATO, 308 Winchester
• Barrel Length: 13 inches
• Thread Pitch: 5/8x24
• Material: Cold Hammer Forged Steel
• Finish: Black Anodized