AR chambered for 5.56 so you can shoot both 5.56 and .223. At this point in time you’re going to want to get an unpopular size side arm only because finding ammunition for anything which is popular will be weeks maybe even months out. Get a shot gun for breaching, shells are available. Once you have these three firearms spend almost the rest of that 5k on ammunition, plate carrier and comms.

AR chambered for 5.56 so you can shoot both 5.56 and .223. At this point in time you’re going to want to get an unpopular size side arm only because finding ammunition for anything which is popular will be weeks maybe even months out. Get a shot gun for breaching, shells are available.