Sorry. If you want a battery free, tritium powered ACOG, you'll have to buy an ACOG.
And they're really not that expensive. The ACOG on my Colt LE940 cost less than the rifle.
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