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Old December 7, 2016, 10:56 AM   #14
dallasb
Senior Member
 
Join Date: October 30, 2011
Posts: 110
About to start my sbr build in 300 blk..

Quote:
Originally Posted by Colten519 View Post
Thanks for the tips guys keep em coming

Only thing with the post above is he doesn't address constructive intent. My advice on that subject is to read the law for yourself and make sure you understand what they "mean" for it to say. I play it on the safe side as I don't want a 10yr vacation with bubba. Once you get a registered lower the general consensus is that makes it a little easier to argue the "I have an extra upper as I change calibers on this particular LEGAL lower".

Have you found a mag that will work with the bullets you are planning to use? I found that subsonics tend to bulge out the PMAGs where the GI mags works just fine. If you stay with a 20rnd instead of 30rnd it seems to make it easier to feed the rifle on any type of mag.


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