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HK: MR762A4, 7.62x51mm, 1x20 rd. Magazine, 13"
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$4479.00
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SKU: 81001052
Overview
Built for shooters who want a compact 7.62x51mm platform with modern controls, this HK package pairs a 13-inch barrel with a 1x20-round magazine for a setup suited to range use, training, and other demanding applications. The short-stroke gas piston system and adjustable gas regulator are intended to support operation with suppressed or unsuppressed configurations, while the fully ambidextrous controls help simplify handling from either side. HK also describes the A4 as having a slimmer profile and lighter weight than earlier versions, which may make it easier to manage without changing the rifle’s core purpose. This is a premium, FFL-shipped firearm for buyers who value a compact format and a no-compromise feature set.
Why Hunters Choose the Hk
Short-stroke Gas
Piston operating system keeps hot
Adjustable Gas
Regulator supports suppressed or unsuppressed
Fully Ambidextrous
Controls improve handling for right-
Slimmer Profile
Lighter weight make the rifle
13-inch Barrel
23-inch Picatinny rail provide a
Key Features
- HK-USA commercial variant of the legendary HK416 platform
- Short-stroke gas piston operating system
- Adjustable gas regulator for suppressed or unsuppressed operation
- Fully ambidextrous controls for easier manipulation
- 7.62 x 51 mm caliber with 13-inch barrel
- Includes one 20-round magazine
Best Used For
- Hunters wanting a 7.62x51mm rifle for suppressed or unsuppressed setups
- Users who prefer fully ambidextrous controls for left- or right-handed operation
- Those seeking a compact 13-inch barrel configuration for easier handling
- Shooters prioritizing a short-stroke gas piston system and adjustable gas regulation
- Buyers needing a commercial HK MR762A4 with included 20-round magazine
Specifications
| Barrel Length | 13 in. |
|---|---|
| Barrel Profile Twist | 4 lands & grooves, 1 in 11 in. right-hand twist |
| Caliber | 7.62 x 51 mm |
| Controls | fully ambidextrous |
| Gas Regulator | adjustable |
| Magazine Capacity | 1x20 rd. |
| Model | MR762A4 |
| Operating System | short-stroke gas piston |
| Overall Height | 7.75 in. |
| Overall Length | 31.4 in. |
| Overall Width | 3.23 in. |
| Picatinny Length | 23 in. |
| Weight | 7.95 lb. without magazine |
Pros
- Short-stroke gas piston operating system keeps hot carbon fouling out of the action.
- Adjustable gas regulator supports suppressed or unsuppressed operation.
- Fully ambidextrous controls improve handling for right- or left-handed users.
- Slimmer profile and lighter weight make the rifle easier to manipulate.
- 13-inch barrel and 23-inch Picatinny rail provide a compact, configurable setup.
- Chambered in 7.62 x 51 mm and includes one 20-round magazine.
Considerations & Trade-offs
- Requires shipment to an FFL and is subject to magazine restrictions, so purchase and transfer logistics may be more involved than a standard retail item.
- The 13 in. barrel and 31.4 in. overall length make this a compact 7.62x51 mm setup, but that format may not suit users prioritizing a longer sight radius or a full-size configuration.
- The adjustable gas regulator is useful for suppressed or unsuppressed use, but it adds another setting to manage depending on how the rifle is configured.
- At 7.95 lb. without magazine, it is not a lightweight option, so carry comfort and handling should be considered for extended use.
Suggested Comparisons
- 7.62x51mm AR-style rifles
- Short-barreled rifles
- Ambidextrous rifle platforms
- Suppressed-ready rifle setups
Suggested Accessories
- FFL transfer service
- Magazine pouches
- Rifle sling
- Optics mount
Frequently Asked Questions
What caliber does the HK MR762A4 use?
The listed caliber is 7.62 x 51 mm.
What barrel length is specified for this rifle?
The product data lists a 13 in. barrel.
Is the MR762A4 set up for suppressed use?
The description says it has an adjustable gas regulator that allows the operator to tune the action for suppressed or unsuppressed operation.
Does this model include ambidextrous controls?
Yes. The description states that the MR A4 has fully ambidextrous controls.
What shipping or transfer restrictions are noted?
The product information says it is restricted for export, must ship to an FFL, and includes magazine restrictions. Buyers should review the attached legal and shipping information before ordering.