They Fielded The Sig XM5 For All The Wrong Reasons

It always happens. When the small Green Beret team was ambushed in Niger, Maj. General Bob Scales escalated his whining about the M4, demanding that it be replaced with a piston AR (a point completely irrelevant to anything that happened in the engagement). The engagement was poorly planned, ill-conceived, and undermanned. There was no QRF anywhere near them, the team was too small, they had no light or medium MGs (and certainly no heavy MGs), and I could go on with the failures.
But it’s the gun. It’s always the gun. It’s never the stupid Colonels and Generals who plan the missions. It’s always the gun. True to form, the reason they fielded the Sig XM5 was to bring battlefield superiority against – wait for it – the PKM. It’s never the planners who put FOBs in the valleys between mountains and waste time even doing that, allowing the enemy to mass forces and field fighters that outnumber our troops by ten to one. It’s the gun. It’s always the gun.
No battle rifle can compete with a crew-served, belt-fed medium MG. There are always answers to medium MGs, such as: taking the high ground, overwatch, QRF, CAS, using our own medium and heavy MGs, and maybe re-introducing a role for the long-forgotten grenadier (the M203 is not a sufficient replacement for the M79 in terms of range). These things mean rethinking doctrine, weapons systems, TTPs, and training. But they don’t want to do that – it’s always the gun.
If you want somewhat increased penetration and distance with the AR platform, I’ve already told you what to do. Switch uppers to the 6mm ARC. It’s a simple change, and would be the cheapest and most effective remedy for what is currently really a very small problem. And in-between remedy for this would be to return the 20″ barrel Eugene Stoner originally designed.
But for whatever reason I cannot fathom, the U.S. Army has some sort of sordid love affair with Sig. And for whatever reason I cannot understand (unless someone has pictures on active generals in the DoD complex), they always need a new rifle. So here it is, all 13 lb of it.