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Posted: 12/7/2003 7:39:06 AM EDT
Hello AR Brothers,I have a new family member.I put a BM upper on my RR lower and it will not fit.The upper is a M4 and the back tab where the pin goes needed to be rounded to fit and the tab is to long.I filed the upper to make it fit.Did I do the right thing??.Has anyone had to do this? Who is not Mil-Spec? Thank you Dice
Link Posted: 12/7/2003 7:52:40 AM EDT
I believe the RRA has a higher shelf, It's much faster to do what you did than to cut down the shelf.
Link Posted: 12/7/2003 10:36:08 AM EDT
As already stated the RRA is higher than spec.
Link Posted: 12/7/2003 4:07:44 PM EDT
Does it cause any problems if you put a RRA upper on a Bush lower? I would think the RRA upper would be higher inside to make up for the higher shelf on the RRA lower...
Link Posted: 12/7/2003 4:49:58 PM EDT
dice, just FYI. There is no AR-15 type firearms available to the civilian that is MilSpec. Not one as in none. 5sub
Link Posted: 12/7/2003 5:49:19 PM EDT
rra upper on my bushmaster lower fits a little sloppy. had to use an accuwedge.
Link Posted: 12/7/2003 6:57:57 PM EDT
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