Originally Posted by
dbain99
Coming from someone who wants a 9mm carbine or 9mm AR pistol for a "truck gun/range toy" I don't see the advantages over a .223.
I see the initial build cost advantage going to the standard AR pattern in .223 for me. (mags and plenty of spare parts around here somewhere)
Ballistically and lethality gives a strong edge to .223.
Ammo cost at $.20 per 9mm and $.30 per .223 is $100 per thousand rounds. Personally 1000 rounds a year through this setup is something I probably won't do regularly so the savings becomes a moot point.
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