I’d be shocked at that. I’ve got 2 .22s, 2 .308s, 2 x39s, one .223 and a 30-06. Plus 2 AR pistols, and a couple extra uppers for AR platforms. That’s 10. Plus a 12ga. Pretty bare-bones IMHO.
Might eventually build another AR-10 lower for 12.5” .308 pistol, and a 6.5C 20+” upper, and another...