I use the KAK extended tube with the SBM4.
It works well for me and gets me just over 26" with a 10.5" bbl.
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I use the KAK extended tube with the SBM4.
It works well for me and gets me just over 26" with a 10.5" bbl.
Since I picked up the new adjustable SBA3, my favorite pistol tube has become the carbine RE. When I get another A5 RE, that will likely become my new favorite.
For me, the combo of LAW sidefolder, A5 tube and SBM4 as-short-as-possible nestles into the crook of my elbow just right, but consider that I'm a 5'6" stubdude with proportionally sawed-off arms.