HK416/MR223 Info Thread

Well, this thread has convinced me this is where I want to put my money.

Are Dealers bringing the 11Inch models in Black and FDE for Feb? Anyone have a great experience and want to suggest a dealer?
 
Get or borrow the Giessele rail wrench - Exact same dimension for the barrel nut wrench.

Guess what, Giessele made rails for HK416 to supply to the US spec ops, and then they started making rails for AR15 to the commercial market.

Ya I’ll pick one of the Giessele wrenches and give it a try before I spend $1000 that’s for sure. Lol
 
Hi Guys, after much thinking, I decided to acquire an MR223A3 in 14.5 in. I held the riffle today at my local gun range, and the built quality looks outstanding. i find it to be really front heavy, is it the quadrail that weights that much ?
Another thing that I noticed after reading Greentips first post, the rifle had the diopter aft sight, but the built in fold-down ( it folds almost on the barrel I believe) front sight. It's the same on the picture posted by the distributor NS on their forum. Is this an older version of the rifle ?
See picture here :

https://www.canadiangunnutz.com/for...233-Heckler-amp-Koch-MR223A3-14-5-quot-223Rem

The stock is the newer slim stock by the way.
Another simple question that I'm sure was answered millions of times, the .223 marking is to meet some European regulations ? Is this a true 5.56 barrel?

Thanks for your help.

The weight difference between the upper with the HKey handguard or quadrail handguard are less then an ounce. Although the HKey handguard is 3/4” longer then the quadrail. In the photo you can see the HKey handguard covers the gas block entirely and the quadrail does not.

No BCG or charging handle, uppers only
With Hkey handguard upper weighs 4lb 2.9oz
With Quadrail handguard upper weighs 4lb 3.8oz

6F49DEED-7D69-4310-9A0F-6DAF6A7E97BB.jpg
 

Attachments

  • 6F49DEED-7D69-4310-9A0F-6DAF6A7E97BB.jpg
    6F49DEED-7D69-4310-9A0F-6DAF6A7E97BB.jpg
    103.7 KB · Views: 419
The easiest way to trim weight off a MR223 is to remove the HK stock and put in a magpul.

I did a bit of calculation some years ago, the weight difference between a typical HK416 barrel and MR223 is about half a lb.
 
The weight difference between the upper with the HKey handguard or quadrail handguard are less then an ounce. Although the HKey handguard is 3/4” longer then the quadrail. In the photo you can see the HKey handguard covers the gas block entirely and the quadrail does not.

No BCG or charging handle, uppers only
With Hkey handguard upper weighs 4lb 2.9oz
With Quadrail handguard upper weighs 4lb 3.8oz

View attachment 142182

makes me happy to see the quad rail ended up on an 11" mr, that was the dream :cool:
 
Well, this thread has convinced me this is where I want to put my money.

Are Dealers bringing the 11Inch models in Black and FDE for Feb? Anyone have a great experience and want to suggest a dealer?

I had great experience with Bulls Eye London. They brought in my MR223. Although it took nearly a year to get it (Not the dealers fault, just huge wait times at HK Germany and still is) the service was great and they where able to bring it in for several hundred lower than I was quoted from other dealers.
 
I had great experience with Bulls Eye London. They brought in my MR223. Although it took nearly a year to get it (Not the dealers fault, just huge wait times at HK Germany and still is) the service was great and they where able to bring it in for several hundred lower than I was quoted from other dealers.

Nice all keep them in mind in the future. Thanks for the heads up.
 
Weather is getting warm so I finally got a chance to shoot the 11" HK MR223

I brought 3 different types of M855 to test the carbine. I used Figure 12 at 300m, using Elcan Spectre DR at 4X. I aimed by placing the 300m horizontal bar to the centre of the fig 12

All shooting done with monopoding on magazine with no additional support, rapid rate at 20 round per minute. 10 round per serial.

IMI M855: 10/10 - 7 1/4" 9/10- 6 1/2"

Federal M855: 10/10 - 10 1/2" 9/10- 7 1/4"

PMC M855: 10/10 -14" 9/10 -10"

As you can see, Federal 855 and PMC M855 produced flyers, especially PMC.

Based on this, the HK MR223 11" is most likely capable of less than 2.5 MOA and could be under 2MOA with high quality mass produced M855 type ammo in 10 shot group at 300m.
 
Not good news - no updates from HK regarding civilian deliveries coming before 3rd quarter 2018 due to factories running at max capacity to fill military contracts. That came straight from HK....
 
I am still waiting for those HKey rails!

I decided to go MLOC with the Geissele Super Modular Rail system. I have the 14.5" barrel in RAL 8000, so went with the 14.5" SMR in Desert Dirt Colour. We shall see what the colour tone looks like when the rail arrives early next week, as the anodizjng apparently varies quite a bit. BTW, all Geissele is 20% off at ArmsEast until midnight tonite (Easter Monday) for some pretty healthy savings on premium kit. I took the opportunity to pick up a reaction rod while I was at it. Cheaper than the HK Mandrel and unlike the Magpul BEV- Block, the Reaction Rod services any 5.56mm/.223 cal firearm with the AR multi-lug Barrel Extension (eg. Bushmaster ACR, HK G36/SL8, B&T APC223, XCR, etc). Definitely a must-have for the "black guns" tinkerer.
 
I would love to have a Giessele rails, but 600 bucks is a bit too rich for my blood.

I understand they are so expensive not because they are uber hard to make, but years ago when they first sold it to the US military for that grand total of under 100 pieces that was the price per unit they sold to the Uncle Sam. Their HK trigger is over 470 USD for the same reason, while the MCX is only 320 USD .

Because they could not sell to the civilians less than what they sold to Uncle Sam for, we have to take the Uncle Sam price.

They should change the design a little bit and call it a different rail, so to lower the price closer to what the other rails are sold for.

On another note, I wonder if the MCX trigger will work in the HK MR. Since they are both designed to tilt the firing pin safety in the bolt carrier. That is a 150 USD saving!
 
Last edited by a moderator:
I would love to have a Giessele rails, but 600 bucks is a bit too rich for my blood.

I understand they are so expensive not because they are uber hard to make, but years ago when they first sold it to the US military for that grand total of under 100 pieces that was the price per unit they sold to the Uncle Sam. Their HK trigger is over 470 USD for the same reason, while the MCX is only 320 USD .

Because they could not sell to the civilians less than what they sold to Uncle Sam for, we have to take the Uncle Sam price.

They should change the design a little bit and call it a different rail, so to lower the price closer to what the other rails are sold for.

On another note, I wonder if the MCX trigger will work in the HK MR. Since they are both designed to tilt the firing pin safety in the bolt carrier. That is a 150 USD saving!

Well, it wasn't quite $600 with ArmsEast's 20% off Easter sale, but yeah close enough that it hurt - I'm not gonna lie! But that is always the way it is with HK OEM parts as well as HK aftermarket accessories. Just try building G36 Clones out of SL8 rifles, having to pay ransom prices for original G36 parts from a sole-source vendor such as HKParts.net. Plus the exchange rate. Plus 3rd Party importation fees. Now THAT hurts!!

I don't have the new Geissele MCX trigger because the Virtus ships with the new SIG Duo-match trigger, which is actually pretty decent. Otherwise I'd try the MCX trigger swap just to see if it works with the MR556. It is an interesting possibility, subject to validation. Sort of like the MPX trigger mechanism, which has an extra, proprietary "shelf" over the Disconnector to protect it from the increased Hammer velocity inherent to the MCX action. The need for this shelf supposedly limits your trigger options with the MCX to SIG factory solutions. I found a work-around with the ALG NiB Trigger and Hammer set, because the Trigger has sufficient clearance to allow the extra Shelf to fit and function as intended. Otherwise, you would have to pay a premium for the SIG Match Trigger.... just like the HK "ransom"....
 
On the subject of mlok rails - the DMR mlok rail from hkparts dot net turned out to be quite good IMHO.

Yes, the Midwest Industries HK416 / MR223 / MR556 Rail is a "value-priced" Handguard replacement that will set you back about half of the cost of the Geissele Rail. The MI rails come in MLOC and Keymod options for $259 USD which puts them at approx $350 CAD landed in Canada. Versus the Geissele for over $600 with tax and shipping.
 
Back
Top Bottom