The HK MR308 A3 Slim Line HKey is the civilian semi-automatic version of a modern precision and designated marksman rifle chambered in the powerful .308 Winchester caliber. Developed on the basis of proven military technology, the MR308 combines outstanding reliability with excellent accuracy and ergonomic handling.

The proven HK gas piston operating system minimizes fouling inside the action and ensures reliable function even under demanding conditions. Thanks to its fully ambidextrous controls, the MR308 is equally suitable for right- and left-handed shooters.

The modern Slim-Line handguard with HKey interfaces allows easy attachment of accessories such as bipods, lights, or grips while maintaining a slim and ergonomic profile. The free-floating, hard chrome-lined precision barrel ensures excellent shooting performance and long service life.

Features

• Semi-automatic rifle chambered in .308 Winchester
• Proven HK gas piston operating system for maximum reliability
• Fully ambidextrous controls
• Slim-Line handguard with HKey interfaces
• Free-floating precision barrel
• Hard chrome-lined barrel for increased durability
• Ergonomic adjustable stock
• Designed for precision and long-range sport shooting
• Reliable performance under extreme conditions
• Compatible with a wide range of accessories

Technical Specifications

General

Caliber
.308 Win

Operating Principle
Gas-operated

System
HK MR308 A3

Handguard
Slim-Line HKey

⚠️ Magazines with capacities greater than 10 rounds are only available to persons legally authorized to purchase them.

Important Information Regarding Firearm Orders

Please note the following:

• Firearm orders can only be placed through our online shop
• During the checkout process, please upload the following documents:

• Valid hunting license (Jagdschein)
• Firearms ownership card (WBK), including pre-entry if applicable
• NWR IDs (see master data sheet)
• Valid ID card or passport

All documents must be:
• Valid
• Complete (front and back side)
• Clearly legible

After your order has been placed and the item is available, you will receive a proforma invoice. Once payment has been received, we will coordinate the delivery date with you. Alternatively, personal pickup is possible.

⚠️ This item is subject to legal acquisition requirements. Sale is only permitted to holders of a valid firearms acquisition license.

The required documents can either be uploaded directly in the comment section after checkout or sent to us via email.

⚠️ Please ensure all required pre-entries are available where applicable.