ok...i just bought a used balco pro sub speargun. Its a euro style 105 cm....it came with no bands so i bought a single 9/16 X 20" band. And since this is my 1st gun i cant figure out how to get the band on the gun.....i have sat ehre for like 2 hrs trying..i honestly cant...its probly very simple..i will post pics of the gun...plz help