midmo-j Posted January 11, 2021 Report Share Posted January 11, 2021 Been looking around internet, even called a gun store. Not finding an answer, so here goes. I want to own a single lower and swap between a 16" carbine upper and a 24" rifle upper. One brand has a rifle-length buffer/spring/tube combo for fixed stock, and a carbine-length buffer/spring/tube combo for adjustable stock. Adjustable stock has some slop which might affect accuracy at longer distances, but I'm not taking 1000yd sniper shots so I'm not that concerned. When going from carbine to rifle, I'd simply rather not change the stock or tube. Do I HAVE to change out the buffer? If I HAVE to change the buffer, can I go to a different WEIGHT buffer of same length, or is there something magical about the rifle-length buffer? Quote Link to comment Share on other sites More sharing options...
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