My Homelite weed trimmer 25s turned a Mejzlik 18-6 at 8400...Easier to mount, a plate across the back instead of a long mount or standoffs....Been so long ago I forgot what all was done, but not much....Made 2, both ran the same...Cost $50 from the Cummings Traveling Tool Show...Boith had EI, but the stock mag should run the same, just heavier...