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Ar 6.8

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Old 02-22-2011, 11:54 PM   #1
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Default Ar 6.8

Does anyone know if a 6.8 upper will fit on a regular 5.56 lower? If yes, do I need to make any modifications to the lower?

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Old 02-23-2011, 12:43 AM   #2
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yes to the first no to the second, put pull the pins take old off install new and replace pins. you will ned 6.8 mags for it.

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Old 02-23-2011, 12:45 AM   #3
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6.8 what? 6.8 SPC? Yes, it will fit on a standard lower. The magazines will work, but will take less rounds per mag.
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Old 02-27-2011, 03:50 AM   #4
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You will need the new upper and yes it will fit your lower. You will also need the 6.8 bolt and mags. after that you are set to go.
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Old 02-28-2011, 08:30 PM   #5
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The forum is on the money! All you need is a *complete 6.8 SPC Upper and a Magazine and you have a full fledged 6.8 SPC Cal. Rifle.
Also for example if you wanted a 458 SOCOM? All you would need is a complete 458 SOCOM Upper. Even takes the standard 5.56/223 Magazines. That is what makes the AR-15 Platform such a great unit. This also applies to other calibers that are available with only the same type installation.


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