MENU
SEARCHThe 5.56x45mm MR556A1 would be available for purchase by off-duty law officers — the HK416 is an agency issued rifle only — and employs a gas piston operating system with a piston and "pusher" rod in place of a gas tube.
Heckler & Koch has brought production versions of a civilian AR-style gas piston rifle based on the HK416 platform to SHOT Show 2011 this week in Las Vegas.
The new rifle, called the MR556A1, is "inspired and influenced by the HK416, the selective fire rifle that widely viewed as a leading candidate to replace the U.S. military's current M4 carbine," according to the company. The rifle has also been adopted by law enforcement agencies.
The 5.56x45mm MR556A1 would be available for purchase by off-duty law officers — the HK416 is an agency issued rifle only — and employs a gas piston operating system with a piston and "pusher" rod in place of a gas tube.
This method of operation virtually eliminates malfunctions more common to direct impingement gas systems. With this rifle, hot carbon fouling and waste gases don't enter the receiver.
The MR556A1 carries over many of the same assemblies and accessories originally developed for the HK416, including the free-floating four-quadrant rail system. This handguard system allows the MR556A1 to accept sights, lights, and other M4-type accessories.
The rifle's rail system can be installed and removed without tools and returns to zero when reinstalled. The MR556A1's barrel is cold-hammer forged.
As a departure from the HK416, the 16.5-inch MR556A1 barrel is not chrome lined. By using high-quality steel, an longer service life barrel can be produced without chroming. According to H&K engineers, chrome lining may add to barrel life but it does not contribute significantly to accuracy and can temporarily conceal defects in the barrel profile.
Discover how one police department cut crime nearly in half using smarter patrol data. This whitepaper breaks down the real-world strategy behind a 46% drop in vehicle thefts, improved officer safety, and stronger community visibility.
Read More →
The first – and worst – time I had to fight to keep my gun, my holster and duty belt held up far better than my training did.
Read More →
Aimpoint is marking its 50th anniversary in 2025, celebrating five decades of red dot innovation trusted by military, law enforcement, and tactical professionals worldwide.
Read More →
“Our newest weapon light provides an industry-leading level of candela for handguns, giving users enhanced visibility under low light conditions, such as when searching a dark alley,” said Streamlight President Michael F. Dineen.
Read More →
This device by itself, regardless if it is installed on a slide or not, is classified by the ATF to be a machine gun, which is illegal to possess,” the Bibb County Sheriff’s Office said.
Read More →
The police department says the largely enclosed new facility will reduce the noise from the shooting range, also used by bomb squad trainees and Correction officers, which has been active since 1960.
Read More →The legislation would permit LEOSA-qualified officers and law enforcement retirees to carry in state, local, and private property otherwise open to the public; national parks; certain federal public access facilities; and school zones.
Read More →
The survey of working officers shows that police have embraced handgun optics with great enthusiasm. Of the officers who completed our entire survey, 77% said their agencies allow them to use handgun optics on duty.
Read More →The new ordinance allows police to use non-lethal weapons such as blast balls and pepper spray but requires those methods to be approved by the chief of police.
Read More →
The design of the 590M provides balance and weight distribution and increased capacity while also allowing for the more compact conditions often required for breaching.
Read More →