Has anyone tried this? I mean on an AR15, it's extremely common in other light autoloading rifles.
It would of course require some pretty big design changes. I feel like one of the biggest potential reliability problems with the AR is that it runs the round bolt carrier inside of a round tube and there's limited space for dirt and fouling to go.
this is definitely not one of those "teh AR15 is unreliable!" threads, a properly built AR is very good.
it just seems like running the bolt carrier on rails could potentially improve the reliability of DI guns, and alternately mitigate the whole "off axis force' due to gas pistons.
down side... what do do with the buffer setup....


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