Yes it does rattle a little. But once in the shoulder it’s solid. That’s one thing Hk did with the stock and buffer tube is not follow the milspec AR15 TDP but there own. A 416 buffer tube does tighten it up a bit. Minor issue. The newer A5 slim line tightens up big time. But I think the MR556 model has a tightening feature on its 416 E1 ?? Not sure
HK416/MR223 Info Thread
- Thread starter greentips
- Start date
Yes it does rattle a little. But once in the shoulder it’s solid. That’s one thing Hk did with the stock and buffer tube is not follow the milspec AR15 TDP but there own. A 416 buffer tube does tighten it up a bit. Minor issue. The newer A5 slim line tightens up big time. But I think the MR556 model has a tightening feature on its 416 E1 ?? Not sure
r34skyline
CGN Ultra frequent flyer
That's fine as long as it's normal. And yes it shoulders good with that convex pad plate or otherwise, just rolls right up and tucks in real nice. Interesting they went with their own dimension. I know their receiver extensions have the holes in the back to let water out for the otb capability.
Decision time fellas. I would like your expert advice...
I am thinking of ordering a Sig MCX Virtus with 16" 300 Blk ($2400) and a separate 11.5" 5.56mm barrel ($???)
Calgary Shooting Centre sent me this list of HK versions to order from (no ETA avail).
https://1drv.ms/i/s!AidY4m1u2gQFgrdiLkonbSOHXAWTbw
Realistically, I mostly shoot CQB and 3-gun from 25m to max 200m. That's why the 11" barrel is tacticool to me, and I want less gun swinging around when I transition to pistol. However, I am very concerned about muzzle flash in the red dot because it is distracting. I mostly shoot outdoors so I don't care about noise.
Now, I am also torn about ordering a 14.5" barrel to reduce muzzle flash.
I reach out to 300-500m occasionally from bench seating. In researching muzzle velocity vs. barrel length with M855 there appears to be a small ~3% fps inscrease from 11" to 14.5" barrel lengths. But maybe an HK 11" is better than their test rifle. [ref: http://www.sadefensejournal.com/wp/?p=1093].
I am thinking of putting a Leupold LCO, or maybe LCO + D-EVO (6x) combo on it.
I am willing to "buy once, cry once", because my starter Bushmaster 16" has served its purpose the past 6 years, and I used a 20" C7 back in the army, so I'm ready to move up to the big leagues.
Thanks guys!
I am thinking of ordering a Sig MCX Virtus with 16" 300 Blk ($2400) and a separate 11.5" 5.56mm barrel ($???)
Calgary Shooting Centre sent me this list of HK versions to order from (no ETA avail).
https://1drv.ms/i/s!AidY4m1u2gQFgrdiLkonbSOHXAWTbw
Realistically, I mostly shoot CQB and 3-gun from 25m to max 200m. That's why the 11" barrel is tacticool to me, and I want less gun swinging around when I transition to pistol. However, I am very concerned about muzzle flash in the red dot because it is distracting. I mostly shoot outdoors so I don't care about noise.
Now, I am also torn about ordering a 14.5" barrel to reduce muzzle flash.
I reach out to 300-500m occasionally from bench seating. In researching muzzle velocity vs. barrel length with M855 there appears to be a small ~3% fps inscrease from 11" to 14.5" barrel lengths. But maybe an HK 11" is better than their test rifle. [ref: http://www.sadefensejournal.com/wp/?p=1093].
I am thinking of putting a Leupold LCO, or maybe LCO + D-EVO (6x) combo on it.
I am willing to "buy once, cry once", because my starter Bushmaster 16" has served its purpose the past 6 years, and I used a 20" C7 back in the army, so I'm ready to move up to the big leagues.
Thanks guys!
mebiuspower
CGN Ultra frequent flyer
- Location
- Morontario
There's no advantage with a short barrel for 3gun. In fact it's a disadvantage since there's more recoil.
You will definitely see muzzle flash with short birdcage flash suppressor in low night with 11.5" gun. You will also see it with 14.5, just not as much.
If you want to shoot blackout, I don't know why you will want to shoot it out of a 16" since it is restricted anyways. The whole point of 300blk is to run it out of a 9" gun, because it is designed to burn all the powder in a 9" barrel.
If you want to shoot 300 blkout, you best choice is SIG MCX 9" PDW.
But I will guarantee the HK will outshoot the MCX in accuracy, any day.
Thanks Mebiuspower and Greentips.
I didn’t fully understand the application of 300 Blk. Now, I see it is more for 9”-11”+ suppresed SOF work.
So I guess it will be 5.56mm 11” or 14.5”. Any other insight on comparing these two barrel lengths?
I didn’t fully understand the application of 300 Blk. Now, I see it is more for 9”-11”+ suppresed SOF work.
So I guess it will be 5.56mm 11” or 14.5”. Any other insight on comparing these two barrel lengths?
300blk is also less of a blast because most of the powder will be burnt. The slow heavier bullets are generally better for thumping certain barriers other than steel and armour plates - but YMWV based on a lot of factors. The downside is that the bullet flies like a rainbow, and practically it is a 170m'ish max system unless your eyes work like LRF and your brain moves like a calculator. And yes, because the bullet is heavier the recoil is noticeable heavier than 5.56. It is basically an expensive AK47 round with a wide variety of bullet choices.
The insight for 5.56 is, you have to know the trajectory and pick the way to zero it so it is most useable within its envelope. The best way to zero a 11" is a 180m zero, but this way gives it 4" more drop at 300m than a 14.5" zeroed at 200m
Is 4" a lot? Well, what if it drops another 2"? Most people are used to the 9 to 10" drop with longer barrels, so at one point enough is enough and it is all up to you. If it is KD, it doesn't matter. If it is a field shot, the smaller the drop the better. The answer is, if you are super switched on and know your dope, anything is possible.
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mebiuspower
CGN Ultra frequent flyer
- Location
- Morontario
Some HK416 tidbits in this video.
vickers vanguard
CGN Regular
- Location
- Laval, Quebec
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.
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.
vickers vanguard
CGN Regular
- Location
- Laval, Quebec
The reason I was asking the question about the .223 vs 5.56, is that I intend to shoot 5.56 of course. So is this barrel a true 5.56 but marked 0.223 for some obscure reasons ?
Also, if you had to do it, would you go with the 11 in version or the 14.5 in ?
Thanks again
Also, if you had to do it, would you go with the 11 in version or the 14.5 in ?
Thanks again
vickers vanguard
CGN Regular
- Location
- Laval, Quebec
Thanks again for your input
To answer your questions, the Quadrail handguard weighs practically nothing. The bulk of the weight comes from the heavy barrel/ barrel nut contstruction and also, to a lesser extent, the piston system/gas block. The rifle isn't ''an older version'' due to having the older style sights and Quadrail. HK just released different options as some people actually prefer them over the newer style handguards/sights. You have ALL of the features of the MR223A3 vs the older versions : Vented Gas block, Chrome line barrel made from high grade steel, Full ambi controls, elongated top rail, Slimline stock, ETC. (see first post) And as other have already mentionned it is a true 5.56 rated barrel. I have shot loads of XM193 with decent results.
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vickers vanguard
CGN Regular
- Location
- Laval, Quebec
Omak47.... thanks for the answers, very helpful again. used to have AR's way back, but it's been 3 years, and everytime i handle one, it looks and feels cheapo. And i'm not talking about the 3000$ space age AR's. I wanted something more utilitarian...battle tested even better.
