HK MR556A1 Review

The HK MR556A1 is the civilian version of the famed HK 416 rifle. The HK MR556A1 is a semi auto rifle that uses a gas piston system vs. the direct gas impingement of a standard AR15. The HK MR556A1 is one of the best built AR type rifles on the market today. Check out this review of the HK MR556A1.

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People & Blogs

Tags:

• hk
• mr556a1
• rifle
• review
• shooting
• ar15
• 416

[timothychong48]

@Sturmgewehre Have you had any problems w/ your ACR? I recall someone posting a video in youtube saying that the barrel says 5.56 nato, but when he shot 5/56, it started to cause problems. And after he returned it and got it back, they said he should shoot 223 instead. Lol, have you had any similar problems?

[Sturmgewehre]

@timothychong48 It was one guy with all those problems, and I'm not sure how that worked out for him. The videos were pretty old, I would think the problems he experienced have long since been remedied. I have two ACR's and shoot them all the time (see my most recent video) and have no issues with either of them. Yes, I shoot very hot XM193F ammo through it and never have problems, and I shoot Wolf without issue. I think they're great rifles.

[humboldtgunguy]

would a pmag work with a standard ar15 lower?

[Sturmgewehre]

@humboldtgunguy The AR's I own, all of them use PMAGs without a problem.

[decimator22]

German engineering FTW

[mrphotoid]

Great video.. thanks for your time to make/post it. I wonder if this is worth the premium over a LMT piston 5.56mm? (I have a Colt LE6920 now - this would be an add). TY

[TheSillmatic]

I'm not really diggin that you need specific tools to do basic things on this rifle... that's not really practical in my book.

And it looks like your ACOG is super far back... are you still getting the right eye relief?

[gthdab]

Ignore my comment. Thought I was doing a search. Sorry.

[gthdab]

Scar16s

[marcot401]

Thank you!!! BEAUTIFULLY MADE VIDEO. 

[pccoder2671]

amazing review. I am ready to go buy it right now.

[checchia]

This gas piston system is better than the system used in the Colt SP901 ?

[faniesmith]

Thanks for the very informative review. I am currently looking at getting one. You answered most of my questions in the video review. Great work!

[mmx25]

@iTziLLUMY The M27 is almost identical. It fires from an open bolt for better cooling and has a heavier profile barrel, different mag etc... It's essentially a MR556 designed for a sustained high rate of fire. From what Ive heard, the Marines hated it at first because giving up a 200 rnd LMG for a gussied up assault rifle was kind of heretical. But the M27 has its merits, and they've warmed up to it.

[coyoteatquiznos]

This review was first class: very straightforward and thorough without being too wordy and even answered the one question of AR lower compatibility that I had on my mind.

[calgarywarmfloors]

@Frankfritz So sure of yourself Frankfritz? I have handled both the HK MR556 and the HK MR762.