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The Range
Rifle & Shotgun Discussion
Why are AR rails almost exclusively 6061 aluminum?
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<blockquote data-quote="tRidiot" data-source="post: 2415016" data-attributes="member: 9374"><p>I don't get it... is there a practical reason? 7075 is stronger from all I have read. We look for lowers with 7075 aluminum construction (usually). We recommend it. Not that 6061 isn't good, I suppose, I'm just wondering... rails tend to get beat up a bit with tossing the rifle around, attaching, removing and reattaching auxiliary components... is it JUST a cost issue? Is it that much significantly harder to mill or cast 7075 that it's cost-prohibitive to do so?</p><p></p><p>Just curious.</p></blockquote><p></p>
[QUOTE="tRidiot, post: 2415016, member: 9374"] I don't get it... is there a practical reason? 7075 is stronger from all I have read. We look for lowers with 7075 aluminum construction (usually). We recommend it. Not that 6061 isn't good, I suppose, I'm just wondering... rails tend to get beat up a bit with tossing the rifle around, attaching, removing and reattaching auxiliary components... is it JUST a cost issue? Is it that much significantly harder to mill or cast 7075 that it's cost-prohibitive to do so? Just curious. [/QUOTE]
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Why are AR rails almost exclusively 6061 aluminum?
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