I just bought a Sig brace
What's the best caliber to build an AR pistol in?
>>34661994
5.56
.300 if u want to be a memelord
Whatever caliber you already own, desu senpai. 5.56 7.62x39, 300, hell even 5.45 do well out of short barrels these days if you get the right loads.
>>34662272
>not getting 9mm
Cheapest, so he will practice more, so he will hit more in the right circumstances.
BUILD IT FOR DA GLAWK MAGS
>>34662360
That too.