Originally Posted by D3S3RT_P3NGU1N
You need to get yourself a .300 blk SBR to go with that SDN-6, shooting 220gr subs its "hollywood quiet"
That is certainly on the list for later (one reason I SBR'd the bottom gun).
First I would like a 308 bolt gun, I think. I can build an 8" or 9" 300blk upper for the SBR one piece at a time.
Now that I finally got the can, there is a newer version with a more solid mounting system. Of course
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17g1, 17g4, 19, 20, 21, 22, 26, 34