Product Overview

MR556 A4 Pistol 11″

The latest update from HK-USA to the commercial variant of the legendary HK416, the MR556 A4 and MR762 A4 represent an enhanced example of “no compromise” HK performance.

Its short stroke gas piston operating system does not impart hot carbon fouling back into the action, allowing the weapon to run longer, with less maintenance and with less wear on internal components than direct-impingement ARs. Its adjustable gas regulator allows the operator to tune the action specifically for suppressed or unsuppressed operation. While fully ambidextrous controls, lighter weight and a slimmer profile make the new A4 easier to operate, manipulate and employ.

For those who demand an AR with unmatched capability and uncompromising reliability and durability, the MR A4s remain the top tier solution.

A wide variety of accessories can be added to increase its functionality. As the world’s most popular rifle, the MR556 A4 is supported by an aftermarket loaded with lots of great accessories, from rails and handguards all the way up to everything you need to make your own legally-registered short-barreled rifle*.

SPECS

Caliber: 5.56x45mm

Overall Length: 26.5"

Overall Height: 7.5"

Overall Width: 3.07"

Barrel Length: 11"

Picatinny Length: 16.75"

Weight (without magazine): 6.61lb

Magazine Capacity: 30/20/10

Barrel Profile & Twist: 6 lands and grooves, 1 in 7 in Right Hand Twist

30 round magazine included

**Due to laws & regulations, the following states and/or counties have magazine restrictions with the max allowable in parentheses:**
- California (10 rounds)
- Colorado (15 rounds)
- Vail, Colorado (21 rounds)
- Connecticut (10 rounds)
- Washington DC (10 rounds)
- Hawaii – Handgun (10 rounds)
- Illinois (10 Rounds)
- Maryland (10 rounds)
- Massachusetts (10 rounds)(5 shot gun shells)
- New Jersey (10 rounds)
- New York (10 rounds)
- Northern Mariana Island (10 Rounds)
- Vermont (10 rounds for long guns)(15 rounds for hand guns)