![]() The half-bolt carrier group (BCG), made to prevent the gun owner from illegally modifying their AR to full auto, was also a feature of the old gun that I’d never been fond of, not because I ever had any intention of doing that, but because it made it harder to swap it out with standard aftermarket parts to ramp up its performance. It was a different size than standard takedown pins, so it couldn’t be replaced with a proper one either. It didn’t allow for the upper receiver to be completely removed from the upper. My least favorite feature was the pivot pin used instead of a front takedown pin. ![]() As good as the Sporter was, it had some limitations compared to my old military-issued M16. Upon learning I would be reviewing the Colt AR15A4, I was curious to see if it would be made like my Sporter. ![]()
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August 2023
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