H&K MR762 A4 13in Upper Receiver Kit 7.62x51mm

Description

The Heckler & Koch MR762 A4 Upper Receiver Kit is a complete AR-10 compatible upper assembly built around a 13-inch cold hammer forged steel barrel finished in black anodize. It is chambered for 7.62x51mm and designed to fit AR-10 platforms. This kit includes core components such as a bolt and buffer, an M-LOK handguard, and an adjustable gas block as part of the A4 updates.

Key Specifications

• The caliber is 7.62x51mm.
• The barrel measures 13 inches and is made from Cold Hammer Forged Steel.
• The model is the MR762 A4 Upper Receiver.
• Designed to fit AR-10 platforms.
• The finish is Anodized in Black.
• Includes bolt and buffer as part of the kit.
• Features an M-LOK handguard.
• Equipped with an adjustable gas block.
• Rate of twist is 1-in-7″.
• Product type is Upper and subcategory Complete Upper Receivers.

Engineered for durability and accuracy, the MR762 A4 upper provides a robust foundation for AR-10 builds that require dependable big-bore performance. Its cold hammer forged barrel and A4 feature set make it well-suited for precision-focused and field-oriented shooting applications where a solid, service-grade upper is required.