Interesting tidbit of firearms related information I found out today.
Although Colt AR-15's are marked as a .223 on the lower receiver all their barrels are actually chambered for 5.56mm. This means I don't have to do anything to shoot both ammo sizes. Yay!
This only applies to Colt manufactured AR's BTW. Other makes YMMV.
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Flanked by life and the funeral pyre. Putting on a show for you to see.
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