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H&K MR556 Semi-Automatic 223 Remington/5.56 NATO 10+1 Capaci

Model: MR556A1
Item Condition: Factory New
Bud's Item Number: 69886

New in the Box from HK

HK® MR556A1

•Semi-auto, Proprietary Gas-Piston Operating System employs a piston & solid operating “pusher” rod (in place of the gas tube commonly found in AR15/M16/M4-style firearms) to virtually eliminate hot carbon fouling & waste gases from entering the receiver area causing malfunction   •Match rifle capability   •Features Picatinny top rail machined into the upper receiver & HK free-floating four quadrant rail system (FFRS) handguard w/(4) MIL-STD-1913 Picatinny rails   •Upper receiver/barrel assembly are fully interchangeable w/other high quality AR-style firearms   •Cold hammer-forged, heavy contour barrel is moderately “swagged” & constructed of the highest quality steel for superior accuracy & long life   •Unlined bore for optimum accuracy w/internal profile of 6 lands & grooves   •1:7" Twist   •Enhanced 2-stage trigger   •7.64 lb. trigger pull   •Extended latch charging handle   •Retractable buttstock can be locked in place by tightening an Allen screw in the bottom of the stock   •C.I.P dimensioned chamber allows for a wide variety of 5.56x45mm ammo & also functions reliably w/most quality .223 Rem. ammo   •OAL: 37.68" (extended), 33.9" (retracted)   •Wt.(without mag.): 8.6 lbs.   •Made in the USA  

Cal.                  Brl.      Cap.

5.56x45mm     16.5''      10

Catalog Ref: HKGMR556A1 


A direct descendant of the HK416, the MR556A1 is a semi-automatic rifle developed by HK as a premium level commercial/civilian firearm. Using the HK- proprietary gas piston system found on the HK416 and G36, the MR556A1 does not introduce propellant gases and carbon fouling back into the rifle's interior, making it the most reliable of any AR-type firearm. The MR556A1 uses many of the same assemblies and accessories originally developed for the HK416 including the HK free-floating four-quadrant rail system. This handguard system allows all current accessories, sights, lights, and aimers used on M4/M16-type weapons to be fitted to the MR rifles. The HK rail system can be installed and removed without tools and returns to zero when reinstalled. The MR566A1 is produced in the USA from both American and German-made components. Additionally, subassemblies like the MR556A1's upper receiver is fully interchangeable with other high quality AR-style firearms. The MR556A1 uses a barrel produced by HK's famous cold hammer forging process using the highest quality steel to produce a long life barrel that provides superior performance with minimal degradation of accuracy and muzzle velocity after prolonged use.

Action Semi-Automatic
Caliber 223 Remington/5.56 NATO
Bbl Length 16.5"
Capacity 30+1
Trigger Two Stage
Safety Lever
OAL 33.9"-37.68"
Weight 8.6 lbs
Stock Adjustable Black
Finish Black


Product Reviews
4 Reviews. Average Rating: 5 of 5 Stars! [5 of 5 Stars!]
5 stars:
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Reviewed By: RICHARD M on 07/10/2012 Rating: 5 of 5 Stars! [5 of 5 Stars!]
Excellent 223 AR a little pricey but definitely top of the line. Fed 600 rounds thru it over the weekend nothing but spectacular performance and as always Buds was second to none in customer satisfaction. Excellent layaway program, quick shipping and fast delivery thru local FFL

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Reviewed By: Chris K on 02/28/2012 Rating: 5 of 5 Stars! [5 of 5 Stars!]
I just purchased this 3 weeks ago. It took until yesterday to receive it, but what a beauty. The fit/finish is unmatched. I'm taking it to the range this weekend. I'm so excited!

It arrived in excellent condition with all the parts and accessories. This is one solid, well built firearm.

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Reviewed By: Jon H on 02/09/2012 Rating: 5 of 5 Stars! [5 of 5 Stars!]
I will review in 2 parts, customer service and product.

Customer Service. This is the second firearm I've purchased from Buds's. Search around, you probably won't find a price lower than Bud's, and if you do, it probably doesn't include shipping. Ordering is a breeze with the selected FFL feature. The rifle shipped within 24 hours and arrived 72 hours later, in perfect condition with all accessories and documentation. Another flawless Bud's transaction.

As for the weapon, I haven't fired it yet, only finger-banged it. I have experience with the 416, the 556 is every bit as fine a weapon. You cannot overstate the quality and attention to detail on this weapon. I will shoot this weapon using the excellent H&K diopter sight (I have an adjustment tool) with a Magpul AFG foregrip and Emags, no other bling required. Yes, it's heavy, but it's tight as a drum and rock solid. I have no doubt it will perform flawlessly. The only negative reviews you will read on this weapon is from those who can't or won't spend the money on a weapon they'd love to own. If you only have one 5.56 in your safe, it's this one - a combat proven tank of a weapon that will take whatever you can throw at it. Can't wait to hit the range. Overall a tremendously positive buying experience.

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Reviewed By: jason l on 10/06/2011 Rating: 5 of 5 Stars! [5 of 5 Stars!]
Excellent craftsmanship from hk once again! Excellent service from buds! Once you get used to the weight nicest ar platform I've fired.(I have colt, sig, and now hk) Only complaint is there is no ready-to-use sling mounts. Sig 516 gets the nod in that department.But if you can grab one there HOT and you know how that saying goes.purchase number 5-6 for me and 4 for my younger brother.Not sure if I can overpay anywhere again after finding buds!

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