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had intention to use this coupler but didnt.. i really need a good or maybe same brand coupler of the 5mm-187. i have one but its all messed up had allen screws get stuck in it and had to dremel them out and now it barely holds up so help me!!! 
didnt make this very clear id like to trade my brand new 6mm-187 coupler for a 5mm-187 or if you guys have a used one thats cool as long as its in good shape ose is out of this size so im kinda stuck!
didnt make this very clear id like to trade my brand new 6mm-187 coupler for a 5mm-187 or if you guys have a used one thats cool as long as its in good shape ose is out of this size so im kinda stuck!