Fiber optic splice assembly

A fiber optic splicing system (30) for accommodating optical fibers (10,20) having similar or distinctly different buffered coating sizes (14,24). The system (30) comprises a first pair of housing halves forming a body (32) with opposed ends (36) adapted to receive two optical fiber (10) of a first similar size; a second pair of housing halves forming a body (32) with opposed ends (38) adapted to receive two optical fibers (20) of a second similar size, different from said first size; and a third pair of housing halves (54) forming a body having one end formed to receive one of said first size of optical fiber and another end formed to receive one of said second, different size of optical fiber. Holding means (36a,38a) in the form of slidable end caps (36b,38b) cooperate with the ends (36,38) of the housing to apply radial compression thereto to maintain the fibers (10,20) in position without the use of crimps or adhesives. A center portion of the halves (54) can be formed to accept elastic means (42) for receiving fibers or, alternatively, a hollow sleeve (45) which includes the elastic means (42) therein.