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The Basics, Starting Out
AR10 - can 6.5CM and 308Win uppers use same lower (buffer/spring)?
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<blockquote data-quote="RABAZ" data-source="post: 2760439" data-attributes="member: 112296"><p>built an AR10 last year, and have 2 uppers - 308win and 6.5CM. probably only have a hundred rounds or so through each upper. 308win upper cycles pretty reliably, but more trouble with jamming on the 6.5CM upper. question - am I trying to do something that won't work (i.e. - common lower for both uppers)? Does the cycling action of the two differ enough that i need different lowers for each? Kind of a newbie, so don't know what i don't know. thanks for any help.</p></blockquote><p></p>
[QUOTE="RABAZ, post: 2760439, member: 112296"] built an AR10 last year, and have 2 uppers - 308win and 6.5CM. probably only have a hundred rounds or so through each upper. 308win upper cycles pretty reliably, but more trouble with jamming on the 6.5CM upper. question - am I trying to do something that won't work (i.e. - common lower for both uppers)? Does the cycling action of the two differ enough that i need different lowers for each? Kind of a newbie, so don't know what i don't know. thanks for any help. [/QUOTE]
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The Basics, Starting Out
AR10 - can 6.5CM and 308Win uppers use same lower (buffer/spring)?
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