Heckler & Koch Inc. H&K MR556 A4 Handgun 5.56mm 10rd Magazine(1) 11'' Barrel Black
$3,749.00
The MR556 A4 delivers proven HK416 performance in a compact 11″ handgun configuration chambered in 5.56mm with a 10-round magazine. Its short-stroke gas piston system and adjustable gas regulator set it apart from direct-impingement AR-pattern pistols, offering superior reliability with reduced fouling and wear.
Out of stock
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.
Specifications:
- Caliber: 5.56mm
- Capacity: 30rds
- Length: 26.5 in
- Width: 3.07 in
- Height: 7.5 in
- Barrel Length: 11 in
- Weight: 6.61 lb
- Trigger: 4.5 – 5.6 lb
- Barrel Profile: 6 lands & grooves right twist 1 in 7 in
- Sights: Optics ready
| Weight | 10.941 lbs |
|---|---|
| Dimensions | 31.250 × 12.500 × 4.000 in |
| Manufacturer | Heckler & Koch |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.
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