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U.S. Army to Convert Over 300,000 M4 Carbines to Enhanced M4A1 Standard
TrendyDigests ^ | Apr 8, 2024 | Ava Chen

Posted on 04/08/2024 1:56:04 PM PDT by where's_the_Outrage?

The Army intends to introduce in 2023 a rifle and light machine gun pairing to substitute the M4 carbine and M249 Squad Automatic Weapon for its close combat unit.

The Marine Corps and Special Operations Command are also involved in the extensive testing and experimentation phase and will be able to choose the new-caliber firearms.

The new 6.8mm round, specially designed by the Army, is the most significant change for shooters. In the Next Generation Squad Weapon program, competitors were tasked with building the weapon to accommodate this round. Sig Sauer secured the $4.7 billion weapon contract last year, while Vortex Optics and Sheltered Wings jointly won the $2.7 billion NGSW-Fire Control contract.

In recent years, the U.S. Army’s fiscal projections have highlighted significant investments in the modernization of the M4 carbine. The modernization program, which began back in 2014, is a multifaceted initiative aimed at enhancing the reliability, durability, ergonomics, and zero retention of the rifle. It encompasses a range of improvements, including the integration of combat optics and a Close Quarters Battle Kit, as detailed in the Army’s budget justification documents.

A significant part of this program is the conversion of standard M4 carbines into the M4A1 configuration. This upgrade not only provides soldiers with full auto capability but also outfits the carbine with a heavier and more accurate barrel. As of the time of writing, more than 117,000 M4A1 upgrades have been completed, with plans to transform over 480,000 M4 rifles in total.

(Excerpt) Read more at msn.com ...


TOPICS: Chit/Chat; Military/Veterans
KEYWORDS: banglist; carbines; m4; m4a1; military; militaryrifle; usarmy
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To: Rio

.270 Winchester uses .277 caliber bullets.


21 posted on 04/08/2024 3:29:02 PM PDT by gundog (It was a bright cold day in April, and the clocks were striking thirteen. )
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To: where's_the_Outrage?
6.8 mm ≅ 27 calibre.

22 posted on 04/08/2024 3:54:32 PM PDT by Governor Dinwiddie (LORD, grant thy people grace to withstand the temptations of the world, the flesh, and the devil.)
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To: where's_the_Outrage?

The M855A1 EPR round in the 1/7 M4 is as effective at putting bad guys down with authority as anything the M16/M4 has ever been chambered for, including the original 55-gr round thru a 1/14 bbl. If you don’t believe me, listen to Kevin Owens, former Tier-1 anti-terrorism with the Irish Rangers and 18 years as a Green Beret with SOCOM (he’s killed more people than cancer):

https://www.youtube.com/watch?v=84KBHdpKB1c&t=314s

But the 6.8 SPC is a big step forward for CQB because it isn’t bullet-sensitive, whereas the AR15 platform has proved itself extremely so (Big Army’s fault, not Eugene Stoner’s). However, the 6.8’s case head is 0.44” larger than the .223’s so there is a small loss of magazine capacity.

And the M4 is a stone-reliable platform thanks to millions of unpaid beta-testers over the last 60 years. Cheap AR-15s now are more reliable than guns Colt built in 1963 because of the lessons learned in more than half a century of manufacture. It would be a shame to bin it because it can’t drive a 130-gr pill at 3000 fps.


23 posted on 04/08/2024 4:26:20 PM PDT by Paal Gulli
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To: Tailback

Military ammo is meant to be shot in vast quantities mainly to keep the other guys heads down. Chasing accuracy or quality beyond a certain point is not productive.


24 posted on 04/08/2024 4:59:26 PM PDT by buwaya (Strategic imperatives )
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To: doorgunner69
Or you could reason the >308 - one shot, one kill
5.56 - 5 shots, one kill.
25 posted on 04/08/2024 5:05:58 PM PDT by BipolarBob (Will there be sugar after The Rebellion?)
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To: BipolarBob
"5.56 - 5 shots, one kill. "

How many people did you shoot with 5.56 before coming to that conclusion? A rough estimate would be close enough.

26 posted on 04/08/2024 5:12:07 PM PDT by Paal Gulli
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To: Paal Gulli
How many people did you shoot with 5.56 before coming to that conclusion? A rough estimate would be close enough.

Good point! I went through a whole magazine and didn't stop them. They were still coming when I got on my moped and left the combat zone. I had no air support! I made it down to the river bank and got in my submersible and took off. As I looked into the periscope at a secure distance away, I think all of them were mobile which was disappointing. I threw the carbine away and carried an AK47 I found off of the enemy. It was better.

Some or all of this may or may not have happened because I get my dreams mixed up with reality. So I'm not really sure.

27 posted on 04/08/2024 5:25:48 PM PDT by BipolarBob (Will there be sugar after The Rebellion?)
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To: Eagles6
it appears to be an expensive boondoggle.

Hey we don't do cheap boondoggles 6.

28 posted on 04/08/2024 5:34:15 PM PDT by itsahoot (Many Republicans are secretly Democrats, no Democrats are secretly Republicans. Dan Bongino.)
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To: buwaya
"... Chasing accuracy or quality beyond a certain point is not productive."

The average man's torso is 19.5 inches wide. Not coincidentally, so is the Army's Trainfire pop-up target. And Army TM 9-1005-319-10 says the maximum effective range of the M4 carbine against an individual is 500 meters.

At 500 meters, a 19.5-inch-wide target is ~3.4 minutes of angle in width. 3.4 MOA at 100 yards comes to ~3.6".

I don't know many shooters who would buy a sporting rifle knowing it wouldn't group any better than 3.6" @100 yards. However, from the Army's perspective, that's good enough to hit an enemy combatant at 500 meters.

And the Army's precision requirement for an infantry rifle is just that simple.

29 posted on 04/08/2024 5:51:40 PM PDT by Paal Gulli
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To: where's_the_Outrage?

This is a mess of an article. The M4A1 spec rifles will continue in 5.56, specifically the M885A1 Enhanced Performance Round. Upgrading 480,000 of them seems like a smart move, if the CQB packages and optics make them more effective in a changing battlefield environment. None of it appears to have anything to do with the new 6.8x51 Sig rifle, which is basically an AR-10 with a piston-based gas system and will (thus far) be produced in smaller numbers.


30 posted on 04/08/2024 5:55:29 PM PDT by Charles Martel (Progressives are the crab grass in the lawn of life.)
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To: Rio

Mate, when push comes to shove it’s always a compromise between projectile weight, velocity, cartidge size/weight etc. I carried an M14, 18 mags plus one in the rifle, 6 grenades, 1 Claymore, rats, deet, socks, etc., and didn’t bat an eye. But then again at 6’3” and 210 lb. I wasn’t effin bothered. Give me the biggest bullet mass/velocity you got and I’m a happy jack. 200 rounds a day on the course was nothing. What’s a bruised shoulder to proficiency. 24/365 and happy.


31 posted on 04/08/2024 6:30:59 PM PDT by .44 Special (Taimid Buacharch)
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To: itsahoot

Yes, I guess that would be pointless, wouldn’t it?🤣


32 posted on 04/08/2024 7:21:26 PM PDT by Eagles6 (Welcome to the Matrix . Orwell's "1984" was a warning, not an instruction manual.)
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To: Paal Gulli

Center Mass ..
I’m thinking.


33 posted on 04/08/2024 8:30:24 PM PDT by Big Red Badger (ALL Things Will be Revealed !)
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To: BipolarBob

“308 - one shot, one kill 5.56 - 5 shots, one kill.”

That assumes better marksmanship than I would expect from the army.


34 posted on 04/08/2024 8:59:08 PM PDT by doorgunner69 (When tyranny becomes law, rebellion becomes duty)
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To: SkyDancer

GEE WHIZ I gotta run out and get some of that stuff TODAY!!


35 posted on 04/09/2024 5:47:19 AM PDT by OKSooner ("You won't like what comes after America." - Leonard Cohen.)
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To: Charles Martel

Thank you. I was totally confused by the article but I thought it must have been me...


36 posted on 04/09/2024 5:49:38 AM PDT by OKSooner ("You won't like what comes after America." - Leonard Cohen.)
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To: Paal Gulli
"... the 6.8’s case head is 0.44” larger than the .223’s..."

OOPS ... that should have been 0.044" larger. I moved the decimal. Sorry 'bout that.

37 posted on 04/09/2024 8:58:34 AM PDT by Paal Gulli
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To: buwaya

M-193 55gr ball ammo never had the problems I’ve seen with M-855 green tip.


38 posted on 04/11/2024 7:36:25 PM PDT by Tailback
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