- HAUS 416A5/MR223 type upper receiver
- BOD 416A5/MR223 type ambidextrous lower receiver
- HK 416A5 style/clone quad rail handguard with flip up front sight
- HK 416A5 style/clone QD flip-up rear sight
- HK 416A5 stock
- HK 416A5 v7 grip
- Ambidextrous magazine and bolt release
- 416A5 style adjustable gas block
- HAUS enlarged trigger guard
- Surefire muzzle device
- QD, blast diverter / suppressor trainer
- HK MR556 bolt group
- HK MR556 cut down 11″ barrel
- HK buffer system
- Standard mill spec trigger set
- Tactical carry bag
- Anodized upper and lower receiver ( NOT Duracoat or Cerakote )
- Laser white marking and custom marking options available
- Third position/full auto marked
- 11″ CHF HK barrel, blast diverter / suppressor trainer, barrel extension for 16″ OAL
- Fully ambidextrous
- Adjustable gas block
- Barrel extension, full auto bolt tab / stopper removed
- Upper receiver machined with full auto relief cut
- M16 trigger pocket shelf machining completed
- Although “sear ready” This firearm is semi-automatic only
Standard Factory HK MR556 Rifle Specs (Before Customization):
- Capacity: Box magazine fed ( compatible with most AR15 magazines that do not have over insertion stops )
- Barrel Length: 16.5in
- Weight: 8.6lbs
- Action: Semi Automatic
- Caliber: 5.56mm NATO
- Overall Length: 33.9in - 37.7in
- Twist: 1:7in
- Barrel Type: Cold Hammer Forged ( none chrome lined )
- Barrel Contour: Heavy Type ( "old style" )
- Trigger Pull: About 8lbs
This semi-automatic military style rifle is a civilian-legal firearm that can easily step into the match rifle world. The HK proprietary gas piston operating system replaces the typical gas ( direct impingement ) system found in AR15, M16, and M4 style firearms. A practically flawless weapon system, the H&K MR556A1 is a direct descendant of the HK416.
A comfortable butt stock allows for recoil to be mitigated as much as possible, and a simple assembly allows the HK MR556A1 to be field stripped for cleaning in just a few minutes. This rifle can also be easily suppressed, and during match trials, it’s demonstrated quick target acquisition despite some models being on the heftier side.
The HK416 Descendant -
The HK MR556A1 is designated as the civilian version of the HK416. Delta Force ( and other special ops arround the world ) have elected to replace their M16/AR15 platform rifles with the HK416. With this impressive legacy to live up to, the HK MR556A1 does not disappoint.
The HK MR556A1 can fire 5.56 NATO and .223 without issue, and offers a very smooth and accurate shooting experience. The short-stroke gas piston system is simple and performs reliably, unsuppressed or suppressed.
- Please have your dealer E-MAIL a photo or scan of their FFL for the transfer.
- If you are sending your receiver back for markings after transfer, please E-MAIL a photo or a scan of your ID for our records. Contact us if your shipping address is different than your ID to confirm.
- Indicate your return shipping address in the "shipping address" section during checkout, and include your dealer's address and FFL in the "dealer section", if available.
- All firearms will ship with signature confirmation ( insurance is extra, see work order options )
- Shipping fee overcharges will be refunded once we know your actual shipping cost, if applicable.
- Add NFA engraving info, date codes, or other project details to the "notes" section during checkout (on the credit card processing and check out page).