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HKM4


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THE HKM4 SYSTEM - As reposted from HKPro USA.

m4red.jpg

Inspired by the resounding success of the midlife improvement program of the British SA80 (L85/L86) Weapons System, Heckler & Koch began a detailed assessment of the technical deficiencies of the standard US-issue M4 Carbine in early 2002.

Combining the lessons learned from this program to the already world renowned design, testing and manufacturing capabilities of HK an internally funded project was launched to improve the reliability, safety and durability as well as the salient features of the baseline weapon system. Working with current users from around the globe HK set out to produce an M4-type Carbine that would outperform the baseline weapon and provide the high degree of performance required by the user community, particularly those within the special operations arena who demand more and expect no compromise when lives are at stake.

High-speed video assessment and extensive live-fire testing in extreme operational environments such as the U.S. Army Desert Proving Ground in Yuma, Arizona revealed multiple areas for immediate improvement. Improvements have been made to the internal operating system and miscellaneous component parts to improve reliability in best and worse case scenarios, with all types of ammunition, with all barrel lengths and with and without sound suppressors attached.

A unique user removable gas system can be factory retrofitted to existing weapons and fits within modified hand guards or a modified Rail Interface System (RIS) allowing all current standard accessories and sights to be fitted to the HKM4 as normal.

The HK-proprietary gas system does not introduce propellant gases and the associated carbon fouling back into the weapons’ interior. This radically reduces operator cleaning time, increases the reliability of the weapon and extends the interval between stoppages.

The elimination of the gas tube typical of the Stoner AR15/M16/M4 direct gas operating system means that the HKM4 will function normally even if the weapon is fired full of water without first being drained.

m4waterdunkpop.jpg

The HKM4 being Fired into a Water Drum for Proof of Operation.

To improve reliability, service life and operator safety during obstructed bore occurrences or after extreme extended firing sessions (>300 rounds) HK has produced its famous cold hammer forged barrel for the HKM4 in various lengths to include 10, 14.5, 16.5, and 20 inches.

The highest quality European steel is used in this unique manufacturing process producing a barrel that provides superior accuracy for greater than 20,000 rounds with minimal degradation. The goal of the program to offer an M4-style carbine that will fire 20,000 rounds without cleaning, lubrication, stoppages, or parts replacement has been realized in the development of the HKM4 Enhanced Carbine.

In addition to the improvements in the baseline weapon HK has produced a high reliability magazine and a proprietary buffer to improve functional reliability as well as an add-on single shot 40 x 46mm AG-C grenade launcher for quick attachment to the RIS without tools.

HK has applied its proven and fielded Safety Blank Firing Attachment and Live Round Excluder Magazine technology to the HKM4 Carbine to eliminate the possibility of live rounds being loaded into and fired through a standard issue weapon outfitted for blank firing only.

While development and validation testing of the HKM4 is still ongoing, it is anticipated that HK will offer retrofit services for existing M4-style weapons to the HKM4 standard for U.S. and foreign military and law enforcement users. A “ drop in” HKM4 upper receiver module and a complete carbine are also nearing completion.

m4rightmain.jpg

Unique Features:

• Short-stroke piston gas system--

--Improved reliability

--100% function

--No fouling directed into weapon

--Less cleaning

--User removable/exchangeable components

--Insensitive to barrel length or ammunition changes

• Improved buffer system

• Improved steel magazine:

--Improved feeding reliability, durability, service life

• Refined barrel/bolt locking recesses/lugs:

--Improved function

• Improved extractor and spring, buffer:

--Improved function

• Enhanced AG-C add-on 40mm grenade launcher

• HK cold-hammer forged barrel

--Extended service life

--Improved accuracy and user safety

Additional ongoing work:

• Monolithic upper receiver with integral Rail Adapter System

• Improved surface finish, ambidextrous controls

• Safety Blank Firing Adapter and live round excluder magazine

• HK free-floating modular rail system

• Integrated reflex sight with nested IR laser aimer and illuminator

>--<

This is just to Inform the Commuity or those Who may not already be aware of this Variant from HK.

Sincerely,

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The good news: our boys can shoot underwater.

The bad news: That doesnt mean a damn thing.

Its a good thing they finally updated the thing, though. its not going to be all that important wit hthe OICW on its way to becoming standard issue for US soldiers in 2005-2010. The M4 is a good weapon, but it forced designers to build a landwarrior kit around it. Now that they have the freedom to make the gun apart of the kit, rather than vice versa, I think they'll jump at the opportunity.

--Harrm

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I thought due to cost and size the OICW was going to be a specialist weapon used in small numbers. If anything gets to be the new standard weapon, it will probably be the XM8 - basically a souped up G36, which is all the rifle component of the OICW is anyway.

Personally with a new improved M4 (I'm also sportin' wood here), I don't see the need to repace the system with a whole new gun...

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The good news: our boys can shoot underwater.

The bad news: That doesnt mean a damn thing.

It is a huge thing actually.

ill elaborate on that.

This means that if you are in a swamp or lake or some very wet place, you can fire your gun quickly, while still partially submerged, without it having a sad at you.

I think it is good thing, revamping the M4.

Means that SF units etc could start using a newer, better quality weapon, sooner that 2010, wehn XM8 or OCIW comes around.

Im also a big HK fan :D

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If you're coming out of a swamp, you're going to be moving so slowly that if you're popping out under enemy fire, you're about dead anyways.

I took this little tidbit of info from a squad-level military book, although I forget the name. Also, if you fire while submerged, the bullet speed reduction is enough where the bullet becomes close to harmless.

Budgie: Well, the PLAN was to get the OICW to everyone. Then Iraq rolled around, and "poof!" our money was gone. The bigshots are still trying to push things through, although its unlikely.

--Harrm

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If you're coming out of a swamp, you're going to be moving so slowly that if you're popping out under enemy fire, you're about dead anyways.

ESPECIALLY if it's those god-spawned Russian conscript uber-marksmen from GR! :rofl:

Edited by budgie
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why does every one love it, when no ones fired it.

no ones used it in adverse conditions.

plus, i guran-damn-tee this thing will costs lots more than the Colts, and we all know, where does Uncle Sam get his firearms?.............

who knows, coult be the next primary AR of this countries military for the next 20 years, looks good, just dont know enough about it yet, give it time.

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It looks pretty awsome. It's about time someone fixed that thing. The under water feature is cool but it's been done before. There are a lot of submachine guns that have that capability. The only thing about a G36 is that it's a light machine gun, not an assault rifle. That would be mass chaos considering most infantry men would go nuts with that much fire power. Just think, someone would tell them to lay down some suppresive fire on a house and they would rip it to shreds! :lol: Crazy stuff...

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that hkm4 looks :rocky: sweeeeeeeeeet

itll be a new toy on my :santa: christmas list

whos doorstop?

i just bought a dpms A-15 Lite 16"

and its sweet.

i got a nice little tac. sling on it

and thinkin about getting an acog for it too :D

EDIT!!!!!!!!!!!!!!!!!!!!

forget about that acog

gonna get a aimpoint for it insted

with a laser pointer too

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why does every one love it, when no ones fired it.

no ones used it in adverse conditions.

Dude give us a break. Most of us never will fire the damn thing. Apart from the few gr.net members who have served or will serve, we're playing soldier 'cos we think soldiering is cool, but for various reasons, cannot or will not serve (I was advised by an NZ army recruiter at 17 that with my ear, I'd better forget it).

So we like/dislike a gun based on what we've read and how it looks. And what we'd like to 'play with' given the chance.

Let me ask you guys a question, would you prefer to date Lucy Liu or Cameron Diaz? Thought so.

Edited by budgie
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