explain to me why this is not the best AR -more relaible than

>>34376578
It's not long stroke, it's Stoners Self-Regulating Short Stroke Piston system. And I'm all for it, the Marines adopted the M16A2 and soon the Army will adopt this. Now if HK were smart they'd build it to run M855A1 without beating itself to death, maybe you could run the gun with a reduced gas.

>>34376578
>-more relaible than an M4
it's not
>-better quality
not really
>-M1 Garand style long stroke gas piston ensures reliability in all conditions
completely fucking wrong like holy shit are you literally retarded

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>>34376578
It's really no different then all the other piston ARs out there and higher end DIs can be just as reliable. For instance when the British were testing .308 DMRs they found the direct impingmention LMT they ultimately adopted was more reliable than the HK 417.

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>>34376631
Caption that pic: America 2019

>>34376578
>M1 Garand style long stroke gas piston
Uh, no.

>>34376578
-no
-lol no
-fuckin what?

>a thread died for this

>>34376612
well shit i forgot my fucking bad

Well Even If It Somehow Does Suck, That Handgaurd Is A E S T H E T I C As Fuck

OP here, sorry for the misunderstanding, i was thinking about an AK when i said long stroke not short stroke gas piston. i should an hero for being a retard like that

But i still have the opinion that the 416 is better than an M4

>>34376859
you forgot what?
do us all a favor and forget how to breath.

>>34376669
>posts jeb

https://www.youtube.com/watch?v=IQDva_dvVL0

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>>34376578
>M1 Garand style long stroke gas piston ensures reliability in all conditions

>>34376578
Because it's way overpriced for marginal improvement.

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>>34376578
the AR-15 cam slot was design for DI gas system

anyone design long stoke/short stoke AR-15 without redesign the cam slot is a retard or a jew

>>34376578

Piston ARs are memes

>but it's less dirty than DGI
Nope not gets dirty in a different place in the gun. Also a vast majority of the gunk is ejected out through the ports on the carrier anyway.
>it keeps the bolt and carrier from getting hot
So what? In what instance as re you going to be touching the bolt and carrier?
>More reliable
The M4 And M16 today are different than the guns in Vietnam. And most issues are wrought by the shitty usgj magazines

>Selling a lower receiver when the selling point is in the upper

Just sell the upper

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>>34376873

>All those rails
>a e s t h e t i c

Stand aside plebian

>>34377117
http://www.thefirearmblog.com/blog/2017/05/07/m27-iar-not-right-rifle-marine-corps/

that is what HK is doing right now
>However, the M4A1 Carbine beat the M27 in bolt life, with an average of 9,000 rounds before lug shear. One M4 bolt even went 13,000 rounds before its first lug sheared! As I will elaborate below, this disparity in bolt life is the result of something peculiar and inherent to the M27
>Aggravating this problem, the M27 manual requires that, unlike with the M4, bolt groups be replaced as a unit. This means that when the bolt shears a lug, the entire bolt and carrier assembly must be removed and replaced with a new unit.

>>34377139
I'm getting more fond of these all the time

>>34377153
Wow, so it's more expensive and less reliable? Color me surprised.

I fucking love the P30 and 45 but HK is becoming more and more like the Apple of the firearm world every year.

Because the 416 has been surpassrd in every way, including short barrels and suppressors, by an MK18 type 2? Now all inferior piston designs can finally die off and the world can use to Stoners DI as it should be.

>>34377271
get one, they're a blast to set up gook targets down range, throw a huge easter egg full of tannerite and shoot it to get the vietnam experience.

>>34376873
Did you forget the meaning of the word aesthetic?

>>34377153
AR15 plz.
http://www.military.com/NewsContent/0,13319,158468,00.html
D A M A G E C O N T R O L

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>>34378066
https://www.youtube.com/watch?v=Jmi3SzkOIiQ
https://www.youtube.com/watch?v=t0xpjy-IIIE

That test have been debunked countless time

the result was inconsistent, and was done by people don't know what they doing

you are posting some bullshit from 2007, you are on damage control, not me

>>34377117
>Nope not gets dirty in a different place

Having cleaned both, assuming you clean your BCG (I understand a lot of people do not bother), the piston guns require far less time because the piston rubs most of the carbon out during operation, and the BCG requires an oily wipe down.

Whether this warrants increased bolt wear, proprietary carriers, and that ridiculous price hike I leave up to the buyer.

So have the logistics guys ever explained why they opted for the IAR as a supplement to the 249 instead of an M4/M16? /k/ has me convinced there's no reason for the piston guns, but is there a link to an official statement or white paper explaining the Marines' decision?

>>34378381
>/k/ has me convinced there's no reason for the piston guns
you missed the point of the M27

M27 barrel is thick cold hammer forged barrel

they are more accurate and last far longer than M249 and M4 barrel

>>34378396
You realize the Minimi has a CHF barrel, right?

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>>34376578
Relative to normal DI ARs, you pay a recoil, cost, and weight penalty for the HK416. You give up the inline design that the AR was built for in the first place. You can be little more lax with cleaning with the HK416 and it is much quicker to clean than the DI. This isn't a too big of a deal because you can fire 2000-3000 rounds with a DI before carbon buildup becomes an issue. Considering combat loads are rarely over 300 rounds and professional militarizes would never let you get your rifle that dirty, it really doesn't matter.

The HK416 has been proven to be a great, durable rifle but the DI AR has been improved greatly as well to the point where it keeps up with the 416.

The HK416 is a great gun NOT because it is a piston AR but because it's an overbuild nazi wundergun. I wouldn't consider it the best AR-15 because it abandons the lightweight, inline design. It's certainly not a great gun for the US market because it is expensive and the support for it is shit.

>>34376578
>Quad rails

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>>34378401

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>>34378424

>>34377117
Heat effects longevity.

>>34378399
yes, M27 still last longer

>>34378487
So get a contract for HK barrels in a cheaper M4 upper/lower?

>>34376578
>long stroke gas piston
WRONG
Literally execute yourself

>>34378434
>>34378424
>>34378401
stop posting these please

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>>34376578
>piston in a AR
Done

>>34377117
>most issues are wrought by the shitty usgj magazines
Don't forget the army being cheap and using surplus gun powder that gunked up the rifle faster.

>>34376578
Oh, I see. You're retarded.

>>34376578
It's not any better than a Colt M4, it's completely proprietary (when the AR is basically open source), overpriced, and no tangible advantage.

>>34378148
>Aberdeen proving grounds
>don't know what their doing
Shills like you need shot.

>>34377003
You mean 'breathe', dear. With an e at the end of the word.

>>34383797
woa dude you fucking owned that guy

>>34383945
That was not my intention, I was just trying to be helpful.

>>34383427
You realize the tests were conducted by enlisted personnel, right? Being posted to a proving ground doesn't make give you any particular expertise on a weapon or make you infallible.

>>34376578

>ITT: American superiority complex has a hard time accepting that German (or European) weapons are on another level compared to US garbage

>>34376631
was the piston system fucking up? Because I get why people think DI is disgusting, but it is simple.

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>>34385183
There hasn't been a single post ITT showing the "superiority" of the German weapon in question, off yourself.

>>34376578
>-more relaible than an M4
Not really, at least not outside of biased "testing" conducted by HK and people with a bone to pick.
>-better quality
What on it is better quality? Arguably the barrel and the bolt (the latter has to be, because unlike DI, piston ARs don't relieve the lugs before unlocking). Why on earth would you insist on paying HK the massive premium instead of just slapping a better barrel and one of the many enhanced bolt designs (LMT for one) on the M4 and get the same "quality" an order of magnitude cheaper?
>-M1 Garand style long stroke gas piston ensures reliability in all conditions
I have no idea what you're smoking, but it's wrong on multiple levels - the 416 is not LSP and the Garand, while hands down the best infantry rifle of WWII, is by no means reliable in all conditions, nor an exceptionally reliable design overall.

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This thing is better than the 416 in every way

>>34385294
>Memenolithic rail
>Rail mounted UGL
Tried so hard and got so far, but in the end, it doesn't even matter.

>>34385310
>Memenolithic rail
Not sure if that's what the Kiwis settled on. They're an outdated design by now for sure though
>Rail mounted UGL
And? As long as it holds it's fine. The sights don't appear to be mounted on the rifle (presumably they're somehow mounted to the 203 directly) so point of impact presumably won't shift.

I mean, probably the best way to go would be to do what I've seen US troops do with the M320, that is using them as standalone weapons so they don't weigh down the rifle.
Doing that for the 203 would require some sort of new chassis system. They probably just mounted the ones they used on their AUGs onto the new rifle, and that was the easiest way to do it.

>>34376578
>more relaible than an M4
Slapping piston on M4 don't make it problems go away
http://www.m4carbine.net/showthread.php?62889-SCAR-vs-AR-A-detailed-look
https://www.youtube.com/watch?v=PApRcRE-ft8

>>34385197
In the torture test it had more stoppages though I can't say specifically what caused them. Keep in mind this is under very harsh test conditions and I would still consider the HK 417 to be reliable enough for combat but the LMT was empirically better.

>>34383427
>hand rifle to enlisted who doesn't know how the burst cam works
>if they only fire one or two shots instead of three in burst they list it as a stoppage

>>34385273
>because unlike DI, piston ARs don't relieve the lugs before unlocking

I thought the spring that pushes the bolt away from the carrier had become standard on all piston BCGs by this point. Is that not the case?

>>34376578

It does nothing better than an AR to justify the price.

>>34386040
This.

A question I've always lived with is why aren't all triggers progressive lile the original AUG? More squeeze per thrust = fuller auto, nomsaying lol.

But really, a single shallow pull will give semi auto, holding it down or squeezing it further will give full auto or a burst.

>>34376578

why are the sights so high

>>34386845
If it's more complicated than the current trigger group then I'd say it's not worth it. Also I don't like the idea of giving a grunt a way to waste ammo.

I don't know how progressive triggers are made though so there's that.

>>34376578
>more relaible than an M4
The m4 does not have a reliability problem. A piston does not make a gun more reliable. A PISTON DOES NOT MAKE A GUN MORE RELIABLE.
>better quality
HK a shit, FN makes our M4s. Therefore the m4 wins by default.
>M1 Garand style long stroke gas piston ensures reliability in all conditions
anon pls

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desu there are better piston ARs than the HK416.

>>34376611
>Now if HK were smart they'd build it to run M855A1 without beating itself to death, maybe you could run the gun with a reduced gas.
Rumors are that certain units are already testing an HK416A7, probably optimized for M855A1

>>34377091
This guy actually knows guns.

>>34377993
>Because the 416 has been surpassrd in every way, including short barrels and suppressors, by an MK18 type 2?
Top kek. There is an inherent flaw with DI SBRs (one of which is gas port and throat erosion) that caused Delta to seek a piston system.

I don't get all the hate for piston systems. True, carbine-length DI systems are fine and pistons don't add anything to such rifles, but pistons are beneficial when running suppressed SBRs.

t: only own DI ARs

>>34389516
It's not piston hate. It's push back from all the "DI A SHIT...PISTON ARs ARE BEST."

>>34389471
Got a link for that? I want it for a friend who will not shut up about how much better the 10.5" MK18s are than short barreled 416s or SCARs.

>>34389572
One of the latest Primary and Secondary Modcasts (Gun Nerds 1?) with two former Delta guys who used both Mk18s and HK416s. The video is around five hours long so good luck finding it.

>>34389551

This. Basically if I see one more person ask about building a piston AR, and their reason is "to make it more reliable" I will reach through my screen and throttle them.

I don't know why it pisses me off so much, but it does. The only worse thing in 'gun culture' is the fuddlore of '5.56 wasn't designed to kill, but to wound', but I don't have to deal with reading that all the time here.

>>34386020
I took LMT over HK and their proprietary bs.

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>>34386040
>I'm retarded the post

>>34390302
> Gas port sizes
> Buffer weights
> Gas port erosion
> Dwell times
> Throat erosion

Who the fuck are these people? This is like listening to gear heads argue about fucking stroke length.

That being said, one dude did lay it out in terms I can understand. With gas impingement, a 10.5" length barrel burned through one part or another in 5000 rounds, hence piston guns. Otherwise, there 0 reasons to own a piston gun in 14.5" or greater length barrel.

>>34377091
the locking lugs dont have any cam action so it doesn't really matter

>>34390302
One of the Assymetric Warfare Group armorers mentioned Marines using 550 cord to keep a 249 from going run away. That was just a joke, right?

>>34378424
>>34378434
The 416 is known for cycling fast and violently on full auto.

someone really should create an upper or conversion so that you can have a folding stock.
Maybe a different gas port(the thing that accepts the gas tube in an ar15, mine was damaged so I replaced that) and have one where the back can accept some sort of recoil spring. Probably want to make the upper taller to make room for a larger recoil spring. The we can get proper folding stocks with ars and you didn't even change that much.

>>34393183

lr300 my dude.

It's shit btw.

>>34393214
How does it work?

>>34393183
>>34393309
https://www.youtube.com/watch?v=yt1np5yjd5c

>>34377091
What's the pink shit on the ar locking lugs

>>34393368
That's not it you faggot.

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>>34393309

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>>34393680
Nice picture thanks!

>>34391474
You're a fucking idiot

>>34390941
Well you are.

>>34394067
>1367x4999
Stop being retarded

>>34393183
>folding stock.
So 1987.
https://www.youtube.com/watch?v=zaGYtntu_tA

>>34394067
Phoneposter detected

>>34378401
>see gif in post
Who the fuck flinches that much on a long gun in 223/556?

>>34395101
An effeminate nu-male shooting a gun for the first time while making a documentary about smart guns.

>>34393501
Blood from dead bees that jam up the AR

>>34395115
>>34395101
who would've thought someone who isn't even into guns can't shoot guns. WOW!!!

>>34395101
>>34395115
To be fair, if you've never shot an SBR 5.56 before the muzzle blast can be a little surprising.