In StockSave 13%
Heckler & Koch MR556 A4, 5.56 NATO, 16.5 Barrel, 1-30rd Magazine, Rifle
Sold byBattleHawk Armory•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$3,749.00
$4,299.00
You save $550.00 (13% off)
Price and stock data refresh continuously from BattleHawk Armory.
Deal Summary
- Currently in stock.
- Caliber: 223/5.56
- Category: accessory
- UPC: 642230269408
- SKU: 642230269408
- Brand: Hk
Price History
Deal Details
The HK MR556 A4 is the commercial evolution of the legendary HK416 platform - a short-stroke gas-piston 5.56 NATO rifle built for operators and professionals who demand low-maintenance durability and battle-proven reliability. With a 16.5" barrel, adjustable gas regulator, and a 30-round magazine, the MR556 A4 pairs duty-grade ergonomics with piston-driven cleanliness so the action runs longer and requires less frequent service than direct-impingement alternatives. HK's short-stroke piston syste
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