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AR15.COM
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9/6/2005 4:54:08 PM EDT
I have a DPMS Upper on a RRA Lower, CAR-15. 6 position collapsable CAR stock came on the DPMS.
I switched it to the RRA lower, but don't have a clue as to what buffer I have. I am planning on getting a 6.5 Grendel Upper and need to know if i will have to change buffers. Both Uppers ( 5.56 & 6.5 grendel ) will only be used for SA Fire.  I just don't want to mess something up by not asking!
 
 Tried a search but couldn't find anything.    
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