HK MR556 A4 556NATO 11" 10RD BLK

Heckler & Koch MR556 A4, Semi-automatic, Pistol, 223 Remington/5.56 NATO, 11" Barrel, Anodized Finish, Black, M-LOK Free Float Handguard, Adjustable Gas Block, HK USA Enhanced Grip, Ambidextrous Controls, 10 Rounds, 1 Magazine 81001051

Manufacturer: HK

SKU: HK81001051

Manufacturer part number: 81001051

GTIN: 642230269446

This item cannot be shipped to the following locations:
AL, CA, CO, CT, DC, DE, HI, IL, IN, MA, MD, NJ, NY, PA, RI, WA, PR

Due to the manufacturer’s pricing policy click "Get My Deal" to request your best price.

$3,749.00*MAP

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. Fully ambidextrous controls, lighter weight and a slimmer profile make the 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.

HK416 elongated steel castle nut
HK416 A5 upper receiver
Continuous picatinny rail interface between upper receiver and handguard
M-LOK interface with integral ambi QD cups
Suppressor-ready concentric 1/2X28 threads
Match rifle cold-hammer-forged barrel
Ambidextrous safety lever, bolt release and magazine release
Ambi safety selector with 45-degree throw
Updated angled magazine well for reliable feeding
HK416 2-position adjustable gas block
Single point QD end plate

Overview
Specifications

HK416 elongated steel castle nut
HK416 A5 upper receiver
Continuous picatinny rail interface between upper receiver and handguard
M-LOK interface with integral ambi QD cups
Suppressor-ready concentric 1/2X28 threads
Match rifle cold-hammer-forged barrel
Ambidextrous safety lever, bolt release and magazine release
Ambi safety selector with 45-degree throw
Updated angled magazine well for reliable feeding
HK416 2-position adjustable gas block
Single point QD end plate

Products specifications

Accessories	1 Magazine
Action	Semi-automatic
TypeOfBarrel	Threaded
BarrelLength	11"
Capacity	10 Rounds
Finish	Anodized
Caliber	223 Remington
Caliber2	556NATO
ManufacturerPartNumber	81001051
Model	MR556 A4
Type	AR
Color	Black

Products specifications

Accessories	1 Magazine
Action	Semi-automatic
TypeOfBarrel	Threaded
BarrelLength	11"
Capacity	10 Rounds
Finish	Anodized
Caliber	223 Remington
Caliber2	556NATO
ManufacturerPartNumber	81001051
Model	MR556 A4
Type	AR
Color	Black

Related products

AGUILA 223REM 55GR FMJ 50/1000

Aguila Ammunition Rifle, 223 Remington, 55 Grain, Full Metal Jacket, 50 Round Box 1E223110

$28.78 ?

ARMSCOR 223REM 55GR PSP 20/1000

Armscor 223 Remington, 55 Grain, Pointed Soft Point, 20 Round Box AC223-2N

$12.35 ?

ARMSCOR 223REM 55GR VMAX 20/1000

Armscor 223 Remington, 55 Grain, V-Max, 20 Round Box AC223-5N

$15.06 ?

ARMSCOR 223REM 55GR FMJ 20/1000

Armscor 223 Remington, 55 Grain, Full Metal Jacket, 20 Round Box FAC223-1N

$11.62 ?

ARMSCOR 223REM 62GR FMJ 20/1000

Armscor 223 Remington, 62 Grain, Full Metal Jacket, 20 Round Box FAC223-8N

$11.99 ?

BARNES VOR-TX 223REM 55GR TSX FB 20

Barnes VOR-TX, 223 Rem, 55 Grain, Triple Shock X, Lead Free, 20 Round Box, California Certified Nonlead Ammunition 21520

$35.99 ?

BARNES 223REM 55GR JHP BT 20/200

Barnes 223 Remington, 55Gr, Jacketed Hollow Point, Boat Tail, 20 Round Box 32002

$20.17 ?

BARNES HARVEST 223REM 69GR GK 20/200

Barnes Harvest Collection, 223 Remington, 69 Grain, Tipped GameKing, 20 Round Box 32397

$35.99 ?

SPR GOLD DOT 223 REM 62GR SP 20/200

Speer Ammunition Speer Gold Dot, 223 Remington, 62 Grain, Gold Dot Soft Point, 20 Round Box 24461

$28.63 ?

SPR GOLD DOT 223 REM 75GR SP 20/200

Speer Ammunition Speer Gold Dot, 223 Remington, 75 Grain, Gold Dot Soft Point, 20 Round Box 24469

$28.91 ?

DBLTAP 223REM 55GR FMJ 50/1000

DoubleTap Ammunition Target, 223 Remington, 55Gr, FMJ Boat Tail, 50 Round Box 223R55T50

$35.99 ?

DBLTAP CD 223REM 62GR SC-HP 20/1000

DoubleTap Ammunition Colt Defense, 223 Remington, 62Gr, Solid Copper Hollow Point, 20 Round Box 223R62CT

$28.34 ?

DBLTAP 223REM MATCH 62GR FMJ 50/1000

DoubleTap Ammunition Colt National Match, 223 Remington, 62Gr, Full Metal Jacket, 50 Round Box 223R62FMJCT

$40.15 ?

DBLTAP 223REM 62GR FMJ 20/1000

DoubleTap Ammunition SS109, 223 Remington, 62Gr, FMJ Boat Tail, 20 Round Box 223R62SS109

$16.79 ?

DBLTAP 223REM 62GR FMJ 50/500

DoubleTap Ammunition Target, 223 Remington, 62Gr, FMJ Boat Tail, 50 Round Box 223R62T50

$40.15 ?

DBLTAP 223REM 62GR SCHP 20/1000

DoubleTap Ammunition Lead Free, 223 Remington, 62Gr, Solid Copper Hollow Point, 20 Round Box, CA Certified Nonlead Ammunition 223R62X

$28.34 ?

DBLTAP 223REM 69GR HPBT 20/1000

DoubleTap Ammunition Long Range, 223 Remington, 69Gr, Boat Tail Hollow Point, 20 Round Box 223R69HP

$26.89 ?

DBLTAP 223REM 77GR HPBT 20/1000

DoubleTap Ammunition Long Range, 223 Remington, 77Gr, Boat Tail Hollow Point, 20 Round Box 223R77HP

$26.90 ?

FIOCCHI 223REM 55GR FMJBT 50/1000

Fiocchi Ammunition Rifle, 223 Remington, 55 Grain, Full Metal Jacket Boat Tail, 50 Round Box 223AFOA

$31.10 ?

FIOCCHI 223REM 55GR PSP 50/500

Fiocchi Ammunition Rifle, 223 Remington, 55 Grain, Pointed Soft Point, 50 Round Box 223B50

$32.26 ?

FIOCCHI 223REM 62GR FMJBT 50/1000

Fiocchi Ammunition Rifle, 223 Remington, 62 Grain, Full Metal Jacket Boat Tail, 50 Round Box 223C

$32.39 ?

FIOCCHI 223REM 45GR FRANG 50/1000

Fiocchi Ammunition Fiocchi Rifle, 223 Remington, 45 Grain, Frangible, 50 Round Box 223FRANG

$40.99 ?

FIOCCHI R DYN 223REM FRG 45GR 20/200

Fiocchi Ammunition Range Dynamics, 223 Remington, 45 Grain, Frangible, 20 Round Box 223FRG20

$21.18 ?

FIOCCHI 223REM 50GR VMAX 50/1000

Fiocchi Ammunition Rifle, 223 Remington, 50 Grain, V-Max, 50 Round Box 223HVA50

$37.19 ?

FIOCCHI 223REM 40GR VMAX 50/1000

Fiocchi Ammunition Rifle, 223 Remington, 40 Grain, V-Max, 50 Round Box 223HVB50

$39.67 ?

FIOCCHI 223REM 77GR HPBT MK 20/200

Fiocchi Ammunition Rifle, 223 Remington, 77 Grain, Hollow Point Boat Tail Match King, 20 Round Box 223MKD

$31.61 ?

FIOCCHI HYPR SBR 223REM 77GR 20/200

Fiocchi Ammunition Hyperformance SBR, Enhanced, 223 Remington, 77 Grain, Boat Tail Hollow Point, 20 Round Box 223SBRD

$21.67 ?

FIOCCHI HYPR 223REM 50GR HP 20/200

Fiocchi Ammunition Hyperformance, 223 Remington, 50 Grain, Hollow Point, 20 Round Box 223VG20

$31.61 ?

FED PWRSHK 223REM 55GR SP 20/200

Federal PowerShok, 223 Remington, 55 Grain, Soft Point, 20 Round Box 223A

$21.91 ?

FED PWRSHK 223REM 64 GR SP 20/200

Federal PowerShok, 223 Remington, 64 Grain, Soft Point, 20 Round Box 223L

$21.91 ?

FED AM EAGLE 223REM 55G FMJ BT20/500

Federal American Eagle, 223 Remington, 55 Grain, Full Metal Jacket, 20 Round Box AE223

$13.19 ?

FED AM EAGLE V&P 223REM 50GR 50/250

Federal American Eagle Varmint & Predator, 223 Remington, 50 Grain, Jacketed Hollow Point, 50 Round Box AE22350VP

$42.19 ?

FED AM EAGLE .223 55GR FMJ 200/1000

Federal American Eagle, 223 Remington, 55 Grain, Full Metal Jacket, 200 Rounds per Box AE223C

$124.50 ?

FED AM EAGLE 223 REM 50GR JHP 20/500

Federal American Eagle, 223 Remington, 50 Grain, Jacketed Hollow Point, 20 Round Box AE223G

$16.98 ?

FED AM EAGLE 223 REM 62GR FMJ 20/500

Federal American Eagle, 223 Remington, 62 Grain, Full Metal Jacket, 20 Round Box AE223N

$14.39 ?

FED AM EAGLE 223 REM 75GR TMJ 20/500

Federal American Eagle, 223 Remington, 75Gr Total Metal Jacket, 20 Round Box AE223T75

$13.21 ?

FUSION 223REM 62GR 20/200

Federal Fusion, 223 Remington, 62 Grain, Boat Tail, 20 Round Box F223FS1

$33.89 ?

FUSION MSR 223REM 62GR SP 20/200

Federal Fusion, 223 Remington, 62 Grain, Soft Point, 20 Round Box F223MSR1

$33.89 ?

FED 223REM 55GR FMJ 500/1000

Federal Federal, 223 Remington, 55 Grain, Full Metal Jacket, 500 Rounds per Box FC223F500

$310.96 ?

FED GOLD MDL 223REM 73GR BERGER 20

Federal Gold Medal, 223 Remington, 73 Grain, Berger Boat Tail Target, 20 Round Box GM223BH73

$32.29 ?

FED GOLD MDL 223REM 69GR BTHP 20/200

Federal Gold Medal Match, 223 Remington, 69 Grain, Boat Tail Hollow Point, 20 Round Box GM223M

$31.61 ?

FED GOLD MDL 223REM 77GR BTHP 20/200

Federal Gold Medal Match, 223 Remington, 77 Grain, Boat Tail Hollow Point, 20 Round Box GM223M3

$31.61 ?

FED V&P 223REM 53GR HRNDY V-MAX 20/2

Federal Varmint and Predator, V-Max, 223 Remington, 53 Grain, 20 Round Box V223VM53

$26.42 ?

ADI 223 REM 55GR SBK BT 20/200

ADI World Class Ammunition Match, Sierra BlitzKing Boat-Tail, 223 Remington, 55 Grain, Brass Cased, 20 Round Box ADI9332153003166

$16.06 ?

ADI 223 REM 69GR SIERRA MKING 20/200

ADI World Class Ammunition Match, Sierra HPBT MatchKing, 223 Remington, 69 Grain, Brass Cased, 20 Round Box ADI9332153003289

$16.78 ?

HRNDY BLACK 223REM 62GR FMJ 20/200

Hornady BLACK, 223 Remington, 62 Grain, Full Metal Jacket, 20 Round Box 80234

$18.34 ?

HRNDY SF 223REM 53GR V-MAX 20/200

Hornady Superformance, 223 Remington, 53 Grain, V-Max, 20 Round Box 8025

$28.79 ?

HRNDY 223REM 55GR SP 50/500

Hornady Custom, 223 Remington, 55 Grain, Soft Point, 50 Round Box 80255

$31.46 ?

HRNDY 223REM 75GR BTHP MTCH 20/200

Hornady Hunting, 223 Remington, 75 Grain, Boat Tail, Hollow Point, 20 Round Box 8026

$28.37 ?

HRNDY CD 223REM 73GR FTX 20/200

Hornady Critical Defense Rifle, 223 Remington, 73Grain, FlexTip, 20 Round Box 80260

$29.45 ?

HRNDY SF 223REM 75GR BTHP MTC 20/200

Hornady SuperFormance, 223 Remington, 75 Grain, Boat Tail, Hollow Point, Match, 20 Round Box 80264

$30.07 ?

HRNDY BLACK 223REM 75GR BTHP 20/200

Hornady BLACK, 223 Remington, 75 Grain, Boat Tail Hollow Point, 20 Round Box 80267

$21.97 ?

HRNDY 223REM 73GR ELD-M 20/200

Hornady Match, 223 Remington, 73 Grain, ELD Match, 20 Round Box 80269

$25.19 ?

HRNDY CD 223REM 55GR FTX 20/200

Hornady Critical Defense Rifle, 223 Remington, 55 Grain, FlexTip, 20 Round Box 80270

$29.45 ?

HRNDY 223REM 55GR FMJ 50/500

Hornady Custom, 223 Remington, 55 Grain, Full Metal Jacket, 50 Round Box 80275

$24.95 ?

HRNDY 223REM 35GR NTX 20/200

Hornady Superformance Varmint, 223 Remington, 35 Grain, NTX, Lead Free, 20 Round Box, California Certified Nonlead Ammunition 83266

$30.16 ?

HRNDY 223REM 55GR VMAX 20/200

Hornady Varmint Express, 223 Remington, 55 Grain, V-Max, 20 Round Box 8327

$28.50 ?

HRNDY SF 223 REM 50GR CX 20/200

Hornady Superformance, 223 Remington, 50 Grain, Copper Alloy eXpanding Projectile, 20 Round Box 83292

$33.85 ?

FRONTIER 223REM 55GR FMJ 20/500

Frontier Cartridge Lake City, 223 Remington, 55 Grain, Full Metal Jacket, 20 Round Box FR100

$10.79 ?

FRONTIER 223REM 55GR FMJ 150/1200

Frontier Cartridge Lake City, 223 Remington, 55 Grain, Full Metal Jacket, 150 Round Box FR1015

$75.59 ?

FRONTIER 223REM 55GR HP MATCH 20/500

Frontier Cartridge Lake City, 223 Remington, 55 Grain, Hollow Point Match, 20 Round Box FR140

$10.79 ?

FRONTIER 223REM 68GR BTHP MTCH 20

Frontier Cartridge Lake City, 223 Remington, 68 Grain, Boat Tail Hollow Point Match, 20 Round Box FR160

$13.19 ?

LAPUA 223 REM 55GR FMJ 20/600

Lapua Full Metal Jacket, 223 Remington, 55Gr, Full Metal Jacket, 20 Round Box 4315042

$38.33 ?

LEHIGH CTRL CHAOS 223REM 62GR 20/200

Lehigh Defense Controlled Chaos, 223 Remington, 62 Grain, Fracturing Tip BTHP, 20 Round Box LA223-62-CC

$40.95 *MAP ?

NOSLER RDF 223 REM 70GR HPBT 20/200

Nosler Reduced Drag Factor, 223 Remington, 70 Grain, Boat Tail Hollowpoint, 20 Round Box 60130

$37.34 ?

NOSLER 223 REM 55GR BT 20/200

Nosler Ballistic Tip, 223 Remington, 55 Grain, Spitzer Ballistic Tip Bullet, 20 Round Box 61025

$35.04 ?

NOSLER TG 223REM 70GR AB 20/200

Nosler Trophy Grade, 223 Remington, 70 Grain, AccuBond, 20 Round Box 61036

$50.99 ?

PMC BRNZ 223REM 55GR FMJ 20/1000

PMC Ammunition Bronze, 223 Remington, 55 Grain, Full Metal Jacket, 20 Round Box 223A

$10.55 ?

PMC BRNZ 223REM 55GR FMJ 10 BX BP

PMC Ammunition Bronze, 223 Remington, 55 Grain, Full Metal Jacket, 200 Round Bulk Pack 223A-BP

$113.54 ?

PMC BRNZ 223REM 55GR SP 20/800

PMC Ammunition Bronze, 223 Remington, 55 Grain, Soft Point, 20 Round Box 223SP

$13.19 ?

PMC XTACM 223REM 77GR OTM SIERRA BT

PMC Ammunition XTAC Match, 223 Remington, 77 Grain, Open Tip Match, 20 Round Box 223XM

$24.02 ?

PPU 223REM 55GR FMJBT 20/1000

Prvi Partizan Standard Rifle, 223 Remington, 55 Grain, Boat Tail Full Metal Jacket, 20 Round Box PP223F1

$12.61 ?

PPU 223REM SP 55GR 20/1000

Prvi Partizan Rifle, 223 Remington, 55 Grain, Soft Point, 20 Round Box PP223S

$13.79 ?

PPU .223 REM MATCH 69GR HPBT 20/1000

Prvi Partizan Match, 223 Remington, 69 Grain, Boat Tail Hollow Point, 20 Round Box PPM2231

$17.47 ?

PPU .223 REM MATCH 75GR HPBT 20/1000

Prvi Partizan Match, 223 Remington, 75 Grain, Boat Tail Hollow Point, 20 Round Box PPM2232

$17.47 ?

PPU SUPREME 223REM 69GR HPBT 20/1000

Prvi Partizan Supreme, 223 Remington, 69 Grain, Boat Tail Hollow Point, 20 Round Box PPMK223

$21.95 ?

REM 223REM 55GR FMJ 250RD BUCKET WTP

Remington UMC We The People, 223 Remington, 55 Grain, Full Metal Jacket, 250 Rounds per Bucket 21388

$155.51 ?

REM UMC 223REM 55GR FMJ 20/200

Remington UMC, 223 Remington, 55 Grain, Full Metal Jacket, 20 Round Box 23711

$14.39 ?

REM UMC 223REM 55GR FMJ 50/400

Remington UMC, 223 Remington, 55 Grain, Full Metal Jacket, 50 Round Box R23966

$34.67 ?

REM UMC 223REM 55GR LEADFREE 20/200

Remington UMC Leadless, 223 Remington, 55 Grain, Full Metal Jacket Leadfree, 20 Round Box R21420

$24.24 ?

SIG AMMO 223REM 77GR OTM 20/500

Sig Sauer Elite Performance, Match, 223 Remington, 77 Grain Open Tip Match, 20 Round Box, 500 Case E223M1-20

$27.59 ?

SCORPIO AMMO 223REM 55GR FMJ 20/1000

STV Technology Scorpio Ammo, 223 Remington, 55 Grain, Full Metal Jacket, 20 Round Box S223055F

$9.89 ?

WIN USA RDY 223REM 62GR 20/200

Winchester Ammunition USA Ready, 223 Remington, 62Gr, Open Tip, 20 Round Box RED223

$20.24 ?

WIN LC 223 REM 55GR HP 20/1000

Winchester Ammunition White Box, 223 Remington, 55 Grain, Boattail Hollow Point, 20 Round Box U223HP55

$13.12 ?

WIN LC 223 REM 62GR HP 20/1000

Winchester Ammunition White Box, 223 Remington, 62 Grain, Boattail Hollow Point, 20 Round Box U223HP62

$13.12 ?

WIN SILVERTIP 223 REM 64GR 20/200

Winchester Ammunition Silvertip, 223 Remington, 64 Grain, Polymer Tip, 20 Round Box W223ST

$29.62 ?

WIN DEER SEASON 223REM 64GR 20/20

Winchester Ammunition Deer Season, 223 Remington, 64 Grain, Extreme Point Polymer Tip, 20 Round Box X223DS

$33.11 ?

WIN SPRX 223REM 64GR PP 20/200

Winchester Ammunition Super-X, 223 Remington, 64 Grain, Power Point, 20 Round Box X223R2

$24.08 ?

Your Browsing History

LAG DFNDR 1911 3" OWB/IWB BLK RH

L.A.G. Tactical, Inc. Defender Series, OWB/IWB Holster, Fits 1911 3", Kydex, Right Hand, Black Finish 6007

$74.95 *MAP

BARNES PIONER 45-70 300GR TSX 20/200

Barnes Pioneer, 45-70 Government, 300 Grain, Triple Shock X Bullet, 20 Round Box 32139

$59.99 ?

BERGARA SIERRA WILDERNS 25CM 20" 4RD

Bergara B-14 Wilderness Series Sierra, Bolt Action Rifle, 25 Creedmoor, 20" Fluted Barrel, Threaded 5/8X24, Camo Finish, Sniper Gray, Sierra Synthetic Soft Touch Stock, Omni Muzzle Brake, Fluted Bolt, 4 Rounds, Hinged Floor Plate Magazine, Right Hand B14S815

$999.99 *MAP ?

MAG KCI USA 1911 45ACP 7RD BLK

KCI USA Magazine, 45 ACP, 7 Rounds, Black, Fits 1911 KCI-MZ038

$12.99 *MAP ?

IWI GALIL ACE G2 5.45X39 16" 30RD BK

IWI US, Inc Galil Ace Gen 2, Semi-automatic Rifle, 5.45X39, 16" Cold Hammer Forged Barrel, Black, Free Float M-LOK Handguard, Side Folding Stock, 30 Rounds, 1 Magazine GAR71

$1,821.99 *MAP ?