the fiber opic sights from TC will the round barrel sights(like my black diamond) fit on a round new englander barrel.... and the octagon bottom fit on a 50 white mountian...tc sell these sights for 45 bucks midland sell them for 35 bucks e-bay has them used for 19.99 p/ship I asked the guy(e-bay) if the round bottom will fit the new englander and he said he thinks it will but not 100% sure has anyone switched out these sights to the sidelocks thanks ed....are there 2 replacement fiber opic sights the same as there sights on the omega and the rest of the ml rifles they sell?