In Stock
Type
rifle
Last Seen
May 20, 2026
HECKLER & KOCH MR556 A4
Sold byGuns.com•Posted Apr 27, 2026
Compare prices for HK MR556 A4 Semi Automatic Rifle 5.56x45mm NATO 16.5" Black Threaded Barrel Matte Frame Black Stock Pistol Grip 30+1$3,639.99
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Deal Summary
- Currently in stock.
- Category: rifle
- UPC: 642230269408
- SKU: 470805
- Brand: Hk
Price History
Deal Details
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 u
Other Offers for This Product
Active offers from your catalog for HK MR556 A4 Semi Automatic Rifle 5.56x45mm NATO 16.5" Black Threaded Barrel Matte Frame Black Stock Pistol Grip 30+1.
Comparing 6 retailers carrying this product
Lowest Price: $3,449.00
Highest Price: $3,749.00
You Save: $300.00
Avg Discount: 7% off
HK MR556A4 16.5" 5.56 NATO Rifle, Black - 81000827
H&KPalmetto State ArmorySKU/UPC: 51655173935
$3,449.00$4,158.99Save 17%
View at Palmetto State Armory
HK 81000827 MR556 A4 5.56x45mm 30+1 16.50 Black Threaded BBL, Black Pic Rail, M-LOK Handguard, 6 Position Black Synthetic Stock, Ambidextrous,Tactical Rifles
Heckler & KochHinterland OutfittersSKU/UPC: 226860
$3,497.00
View at Hinterland Outfitters
Heckler & Koch MR556 A4, 5.56 NATO, 16.5 Barrel, 1-30rd Magazine, Rifle
Heckler & Koch, Inc.BattleHawk ArmorySKU/UPC: 642230269408
$3,749.00$4,299.00Save 13%
View at BattleHawk Armory
Heckler and Koch MR556 A4 5.56 16.5 Barrel 30-Rounds
Heckler And KochGrabAGunSKU/UPC: GAG_81000827
$3,749.00$4,299.00Save 13%
View at GrabAGun
HK MR556 A4 Semi Automatic Rifle 5.56x45mm NATO 16.5" Black Threaded Barrel Matte Frame Black Stock Pistol Grip 30+1
HkMidwayUSASKU/UPC: 427243
$3,749.00
View at MidwayUSA