Search Results for ‘mr556a1’

Finally have all the girls in one place. Figured I would share this picture of the happy family. MR556A1 with Vortex Razor HD 1-10 USC/UMP Conversion .45 (HDPS) SBR SP5 With HK Parts Binary/Navy trigger grp SBR With Silencerco hybrid 46 HK 45T HK45C HK P30L with HK Parts Compensator

I have an MR556A1 and I was wondering whether is possible to add a non-HK complete upper to my HK lower. I read in the manual that the rifle is made to AR-15 specifications but it was not explicitly stated that this is possible. For example, can I add a KAC SR-15 5.56 11.5" to my HK lower...

Last night I installed a HoloSun 510C-GR on my MR556A1. I was very excited as this was my first encounter with an LED Reflex and have heard nothing but great thing's about the HoloSun brand. After installing and inserting the battery I finally looked down and to my dismay I had more of a blurry...

Brand new, unfired, never mounted on a lower, in original HK range bag with all accessories. HKey rail, heavy barrel. 1,900 + Shipping, OBO. I can provide HK Pro site references.

$120 Shipped

I have for sale a brand new, unfired MR556A1 upper for 1500$ shipped. This is the newest model with the thinner profile barrel and mlok handguard. Perfect for anyone wanting to upgrade to the thinner barrel. I bought a complete MR556A1 a few months ago, but got ahold of an HK416 Upper. This will...

Greetings all. I'm looking for an 11" handguard (picatinny or m-lock; metal or polymer) that will work for an MR556A1 that has a 14.5" barrel... and has an inner diameter of at least 1.6" (4.06cm). The handguard will have to slide over a welded suppressor that has a diameter of 1.58" to allow...

I know the title of this post sounds stupid, but consider me stupid when it comes to AR's. The MR556A1 is my very first! I am a long time owner of HK USP pistols so I know the drill and can disassemble and reassemble them blindfolded (fibbing a little of course), but consider me very...

I'm the proud owner of a new no box, unfired MR556A1 that came with four HK mags and a HK Factory soft case. I paid $1,894.25 shipped, how did I do? Secondly, I understand the bolt carrier is filed down so as to not function in full-auto. I want to put it on top of my class 3 model 601 so...

I sense a trend: adding a Trijicon to every HK and clone I own! Pictured are my MR556A1 with 3.5x ACOG, SP5K pistol with 1.5x Compact ACOG, and MP5/40 clone pistol with MRO.

For those who have a lot of rounds through their MR556/762s, how have they been holding up for you, and how many rounds have you put through them? I'm especially curious about that infamous chromeless barrel, as there's a popular thread on another forum where a guy who runs a high-volume range...

Hey all, I'm looking for a stripped, or mostly stripped, HK MR556 A1 lower receiver. I really don't need the buttstock or pistol grip, but I wouldn't mind the internals if that's what's available. Please PM me here on the forum if you have one to offer. I'd like it to me in new or as-new...

All - After inconclusive fragmented search results for this information on this site, just posting to contribute to/enable future searches. Copy of e-mail response from [email protected] received as of 2014.12.11: -------------------------------------------------- ********, the thread...

Looking for an ambidextrous mag release for the mr556a1. Can anyone help?

Saw in a recent thread that someone would rather have and a5 instead of the new competition model. So I thought whats the a5 blah blah. Looked at an old thread with the same question. Didn't fully answer my question. So what is the difference?

I am a new owner of a HK MR556A1 and recently installed a new backplate sling attachment. In doing so, I lost the pressure spring and locking pin (Owners Manual parts: 83.) Stop pin for locking pin Part #233115 84.) Pressure spring Part #233116. What is the purpose of these two parts and...

I'm looking at this rail 15" Super Modular Rail MK3 - (DDC) Desert Dirt Color its a nice looking rail but what are its benefits? Why shouldn't I just stick will the default rail that comes on it?

I've been reading through the couple SCAR16 vs. MR556 threads and I've found some useful information but now that the 556 has been out a awhile, I'm wondering your opinions. Since the MR556 doesn't have M4 feed ramps am I to assume that HK doesn't feel they are necessary or that there is some...