They’ll just use the Magpul anyhow.
“Soldiers from B Troop, 3rd Squadron, 61st Cavalry Regiment, had been issued PMAGs before deploying to Afghanistan in 2009. On Oct. 3 of that year, they fought off a bold enemy attack on Combat Outpost Keating that lasted for more than six hours and left eight Americans dead. Some soldiers fired up to 40 PMAGs from their M4s without a single stoppage.”
Yeah, I can see these guys swapping those out for aluminium mags.