... sooner rather than later. That takes me down a different path though into the world of another "project". I was hoping to avoid that, but I have a few HW30 springs in the parts bin and I read somewhere the HW30 spring would fit and give the gun a healthy boost.... The HW30 spring fit in my IZH61 and improved the power considerably, but the dainty sidelever was really straining under the pressure, so it went back to stock. I'm sure the 240 barrel could handle a stronger spring w/o much trouble.