HK MR556 OR Rifle 10 RD 5.56 16.5″ CA Compliant


Capacity 10+1
Barrel Length 16.5in
Finish Black
Sights Flip Up Front & Rear
Weight 8.6lbs
Action Semi Automatic
Cartridge 5.56mm NATO
Color Black
Grips Black Polymer
Hand Right
Overall Length 33.9in
Product Line MR556
State Compliance California Compliant
Twist 1:7in
Type Centerfire

Buy HK MR556 OR Rifle 10 RD 5.56 16.5″ CA Compliant

HK MR556 5.56mm NATO 16.5in Black Semi Automatic Modern Sporting Rifle – 10+1 Rounds – A direct descendant of the HK416, the MR556A1 is a semi-automatic rifle configuration with match rifle capability developed for civilian users. The MR556A1 uses the HK proprietary gas piston operating system, employing a piston and a solid operating “pusher” rod which virtually eliminates malfunctions common to direct impingement gas systems since hot carbon fouling and waste gases do not enter the receiver area. The HK Modular Rail System (MRS) is truly free-floating for maximum accuracy. The MRS hand guard has a more ergonomic design, yet retains many features from the previous FFRS. It uses an HK proprietary keyhole design to allow the attachment of Picatinny rail segments to the hand guard. The MR556A1 also has a Picatinny rail machined into the top of its upper receiver for mounting optics and mechanical sights. Major sub assemblies, including the upper receiver/barrel assembly, are fully interchangeable with other high quality AR-style firearms. The MR566A1 is produced in the USA from both American and German-made components. The German-made, unchromed barrel is produced by HK’s famous cold hammer forging process with the highest quality steel for a barrel that provides superior accuracy and long service life. This low-capacity model is supplied with one 10-round magazine, a 9in MRS hand guard, and Troy Micro-sights.


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