Well... 20" is 508mm, and the back end of the Barrel isn't counted as the 20" (where it sits IN the receiver). So you're cutting it very close, but it should fit. :\
Mind you, I always fuck up barrel measurements, someone else chime in?
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Ár skal r?*sa, sá er annars vill
fé eða fjör hafa. Sjaldan liggjandi úlfur
lær um getur né sofandi maður sigur.
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