  We discuss the properties of magnetically dominated jet-like outflows from
stellar mass black holes surrounded by debris tori resulting from neutron star
disruption. These jets may have narrow cores (along the rotation axis) which
are almost free of baryons and attain very high bulk Lorentz factors $\simg
10^6$. The jets give rise to a characteristic MeV to TeV emission as well as to
relativistic shocks producing the usual MeV bursts. Because the outflow is
highly directional the properties of the observed gamma-rays would depend on
the viewing angle relative to the rotation axis. Even for the most intense
bursts, which under the assumption of isotropic emission and substantial
redshifts would be inferred to emit $10^{52}-10^{53}$ erg, the efficiencies
required are only $10^{-2}-10^{-4}$.
