it would be curious to see if this spawns any new variants chambered in odd calibers...
Yeh, just change it to 222 or 224 or 555 or 557.
“it would be curious to see if this spawns any new variants chambered in odd calibers...”
Well, right now today you can buy an AR-15 chambered for at least three other rounds none of which require anything but a barrel change. they are:
.300AAC, .458 SOCOM and 6.8mm SPC. They all essentially utilize a reworked .223 case and they have OA length equal to the .223 so they work in all the magazines. The likely outcome here (thinking that the dickless GOPE don’t do anything) is that the mfr’s will crank up the 55 grain production since the brass is the same. Shouldn’t really affect supply as I see it.