H&K MR762A4 Upper Kit 7.62x51mm 16in

Description

The Heckler & Koch MR762A4 Upper Receiver Kit is a factory-style complete upper assembly configured for 7.62x51mm. It is built around a 16-inch cold hammer forged steel barrel with a 1-in-7″ twist and finished in matte black. The kit includes a M-LOK handguard and ships with the bolt and buffer included. This upper is intended for use on MR762-platform semi-auto rifles where a durable, service-grade upper is required.

Key Specifications

• The caliber is 7.62x51mm.
• The barrel measures 16 inches.
• The barrel material is cold hammer forged steel.
• The rifling twist rate is 1-in-7″.
• The finish is matte black.
• The handguard features M-LOK.
• The kit includes bolt and buffer.
• This upper is not drilled and tapped for optics.
• A scope cover is not included.

As a factory H&K upper assembly, the MR762A4 kit provides a robust starting point for those building or refreshing a 7.62x51mm semi-automatic platform. With a cold hammer forged 16″ barrel and service-oriented features like an M-LOK handguard and included bolt and buffer, it supports accuracy-focused setups and practical accessory integration without excess extras.