The LAMG and AMG are unfortunately fatally flawed and entirely unsuitable in their current forms for mass issue because they'll have some pretty severe service life problems (in addition to making FN belt feds look affordable lol)

Though, I think fixing them would probably be easier and if opened up to other contractors for production could definitely be substantially cheaper than the FN evolys.

What's extremely unfortunate is that 40+ years of extremely poor army decision making wrt belt feds has left us in a position where we now have very few choices.

I'll be honest, I wouldn't mind seeing the super sized ares mcr the Turks are now making in 308 get tested along with the few poor choices we have.

Being even more honest I'd love to see a Lonestar and Barrett Collab using Barrett's LWS version of their 240L entry as a potential temporary placeholder gun until we can spin up better belt feds for high pressure neckless TV.

fellas, do you guys think 6.8 can penetrate the new spetsnaz body armour?
https://www.youtube.com/watch?v=_pYKMIUoWlk

have you heard of the 17 incinerator......a 30grain bullet at 6000fps from, a 50BMG case

Incinerator sounds like a tongue in cheek description of the aerodynamic heating suffered by the bullet.

What's the complete name, Barrel Incinerator?

Another look at the 6.8 Raptor concept by SIG:

-May serve as PDW

-18-20" version also being developed 

YouTube

US Army Prototype NGSW 6.8mm Raptor - All You Need to Know

This is a very unusual full powered battle rifle with an impossibly short barrel. Find out how this US Army prototype M4 replacement is able to achieve a hig...

At 6:37, there is a NGSW Update:

-plan to select NGSW winner Jan 2022 (aka next month)

-T&P Reports from 'highly placed source' that Textron weapons and ammo 'Failed to reach requirements of the Army' 

So, the US Army "could" not only replace the M4 & M249 in the infantry role (the goal of the NGSW program - and keep the M4 for the PDW role), but also finally replace all & every M4 in service, even for non-infantry purpose... that's an interesting move.

EmericD said:

So, the US Army "could" not only replace the M4 & M249 in the infantry role (the goal of the NGSW program - and keep the M4 for the PDW role), but also finally replace all & every M4 in service, even for non-infantry purpose... that's an interesting move

It could be a possibility. 

The issue to me is one of suppressors. 

-The Raptor unsupressed is very short (~Krinkov) but will be tremendously, possibly dangerously, loud. 

-The Raptor with suppressor (unless its the Brevis) will end up with a length comparable to the M4, making its PDW benefits dubious, especially when the added weight vs M4 + 20rd mags are factored in

On such short barrel, suppressor is 100% essential.

You can use such micro type unit , just so that you don't need double ear protection.  

Silent Steel Micro Streamer from Finland adds only 50mm in lenght but you would be looking at well over 150+DB with 9' barrel.

On this forum a number of years ago, RRBud and I joked about using 300 Win Mag out of a short-barreled machine gun for room clearing.  There would be no need for flash-bang grenades to disorient the bad guys!