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In this work, we present mass limits on gluinos and stops in a naturalNext-to-Minimal Supersymmetric Standard Model (NMSSM) with a singlino as thelightest supersymmetric particle. Motivated by naturalness, we consider spectrawith light higgsinos, sub-TeV third generation sparticles and gluinos wellbelow the multi-TeV regime while the electroweak gauginos, the sleptons and thefirst and second generation squarks are decoupled. We check that our naturalsupersymmetry spectra satisfy all electroweak precision observables and flavourmeasurements as well as theoretical constraints. By reinterpreting the resultsfrom the 8 TeV ATLAS supersymmetry searches we present the 95% CL exclusionlimits on the model. The results show that the presence of a singlino LSP canlengthen decay chains and soften the final state particle energies. Whilst thisdoes reduce the strength of the bounds in some areas of parameter space, theLHC still displays good sensitivity to the model.

Naughty or Nice? The Role of the `N' in the Natural NMSSM for the LHC