Colt LE6940 with ACOG
Sig P226 9mm
Don't need anything else.
Already have all three and plenty of ammo for them.
History fails to record a single precedent in which nations subject to moral decay have not passed into political and economic decline. There has been either a spiritual awakening to overcome the moral lapse, or a progressive deterioration leading to ultimate national disaster.
If you think a strong military is expensive, think about what a weak one would cost