I have the EGW, my buddy has the sumtoy. Same guns as yours except 20 gauge. They are almost the same height, but the EGW's extra 1/8" of height gives more threads to mount your sight to. My buddy's sumtoy stripped (used a torque screw driver to specs). Sumtoy sent him another free of charge, but there's not a lot of meat there to screw into. I'm pleased with the EGW.