Has anyone tried 3d printing something or made something to fill the void *see picture* that also attaches to the tank and an arca rail of choice adding way more rigidity and stability. Not a fan of using just the trigger guard and one or 2 mlok fasteners like I see a lot of people do. Having solid connection to the tank and trigger guard would greatly improve how the gun can be used with bipods and tripods as well other accessories. Arca rails are just far more superior than picitinny. Just a flex I hand pumped that 500cc tank, not as bad as people make it seem, span of 3 days I think 4-6 pumping sessions total that were only about 10-15 minutes.