Looks like a typical AR-15 platform with a slightly enlarged magazine well in the lower... Also, gas-operated which is typical.
I am assuming the larger magazine well and perhaps an ability of the upper to be threaded for an interchangeable barrel are the major differences?
Likely we won't see an acceptance of it here in the Marxist Republic (hate to call California a Republic. Our laws are not becoming of a Republic) due to it being a Colt receiver. I may be talking out of my *** though, perhaps not all Colts are not listed.