We present plingo, an extension of the ASP system clingo with various probabilistic reasoning modes. Plingo is centered upon LPMLN, a probabilistic extension of ASP based upon a weight scheme from Markov Logic. This choice is motivated by the fact that the core probabilistic reasoning modes can be mapped onto optimization problems and that LPMLN may serve as a middle-ground formalism connecting to other probabilistic approaches. As a result, plingo offers three alternative front-ends, one for LPMLN, PLOG, and PROBLOG. The corresponding input languages and reasoning modes are implemented by means of clingo's multi-shot and theory solving capabilities. Although plingo's core amounts to a re-implementation of LPMLN in terms of modern ASP technology, it integrates various probabilistic reasoning modes with the full modeling language and reasoning spectrum of clingo.