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Posted: 3/8/2013 5:28:32 PM EDT
| i have a RRA 6.8 can i remove the upper and replace it with it with a 556 upper. it would be cheaper to practice with. |
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Quoted:
i am new at this beside the upper do you mean i have to buy a new 556 bolt ? Yes, the 5.56 case has a smaller rim diameter and the 6.8 bolt will not work with 5.56 To run 5.56 you will need.... 5.56 barrel (of course) 5.56 bolt (you can use the same carrier) 5.56 magazine |
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Quoted: then what comes with a complete upper? you guys are great at helping me Most companies refer to a complete upper as one fully built and comes with a bolt carrier group and charging handle. A few companies sell them without the bolt carrier group and charging handle. |
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