The old scorpion tube measures 325mm, the GS tube is 250mm so it will protrude 3" past where it is now. The tube is the same fitting at both ends so it is a simple screw on fitting job. Switching the stripper for a slim silencer would keep the rifle looking right with a long tube on.
Considering the fill valve and reg secure into the threaded ends on the tube about 30mm that gives usefull internal lengths of 190mm GS tube and 265mm scorpion tube so the 3" longer tube gives nearly 50% more volume.
HFT, for people with only 2 buttucks!
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