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Hopefully the 9mm pistol will also get an upgrade.
After over five decades of faithful service, the M16 series, an icon of American military might and a direct descendant of the AR-15 designed by Eugene Stoner will be succeeded by Sig Sauer's advanced XM7 rifle.
The M16, first introduced in 1964, has been the most-produced 5.56x45mm weapon, marking a significant chapter in the annals of U.S. military history.
The latest variant, the M16A4, known for its three-round burst feature, will soon yield to the cutting-edge design of the XM7, a testament to the relentless pursuit of small arms excellence.
Firing the Army’s New Rifle And Machine Gun Is A Weighty Experience - 09/22/2023, Forbes
It’s an improvement but not a huge one.
They should have went with the NATO .308 or 7.65 x 51 round.
The ammo is heavy, very expensive and difficult to make.
With the military getting rid of strong male warriors, in favor of DEI personel, that won't be able to shoot or carry this rifle, it appears to be an expensive boondoggle.
There are piston ARs; Adams Arms, POF and they come in any caliber.
Adams Arms sells a kit for $200 that can switch any DI AR to piston.
Heck, they can switch the caliber, on existing rifles AND switch to a piston for a fraction of the cost of these Sigs.
They went to the new Sig M7, 9mm last year.
The feather-round M1A1 is just the next election/swindle away...
The brutal killing during battle must end!
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The original design by Eugene Stoner specified a barrel with a 1 in 14” rifling twist. This under-stabilized the 55 grain bullet so that it tumbled upon striking a human target which produced devastating wounds. The Army brass was against adoption of any rifle that had been developed outside their chain of command and did everything they could to screw with the AR. To that end they sent samples to the Cold Weather Test Center at Ft. Wainwright, AK. The armorers there promptly stripped the rifles down to evaluate them. The factory used tapered pins to secure the front sight assembly. Tapered pins are not reusable once removed and the armorers did not have any replacements. They used standard roll pins during re-assembly so guess what? The front sights on the sample rifles were loose. During cold weather testing the accuracy of these rifles did not meet specifications. The Army brass decided that this was due to the slow twist rate when the real problem was improper re-assembly resulting in loose sight assemblies. So they demanded that the barrel twist rate be changed to 1 in 12 inches which stabilized the bullet to the point that it did not tumble so easily on impact which reduced its lethality. Now the bullet twist rate is 1 in 7 inches so the bullets are over-stablized. They managed to do this before the adoption of the DEI poison that now infests the US Government so excuse me if I am not impressed by their new plans. If you watch the imbedded video by Garand Thumb he has so much garbage hanging on that M4 that it must weigh 10 lbs. or more.
6.8mm works out to .268 caliber (.270).
https://en.wikipedia.org/wiki/6.8mm_Remington_SPC
Based on the .30 Remington cartridge,[7] it is midway between the 5.56×45mm NATO and 7.62×51mm NATO in bore diameter. It uses the same diameter bullet (usually not the same mass) as the .270 Winchester hunting cartridge.
Guns are dangerous.
A phrase like the above seems to me to be written by someone who has never fired a rifle. Under the new model where every decision has to be subservient to the DIE agenda, I don't have much hope for the upgrade. I like the comment about weight. I remember we had to do away with the "firman's carry" to enable women to become fire fighters.
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.
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.