I would not consider several of those pieces disposables
Really. Even the cheapest WASR-10 is in the $3-400 range, locally, these days. No way I'd be throwing it away when the magazine was empty.
While that may be true, the price without the many infringements of the Second Amendment would probably be more like $75. In either case, the cost of the equipment would be dwarfed by the legal costs if apprehended committing the crime. The cost of firearms is already inconsequential to many crimes, including turf wars over the illegal drug monopoly.
A couple of things:
First, the media being what it is, we don’t know for sure if it was an actual AK-47 pattern rifle or an SKS or what.
Secondly, they were disposing of a murder weapon. Any sane hitman knows to do that.
you got that right!