A sprinkler assembly comprising: a sprinkler frame including a body having a proximal portion, a distal portion, an external surface and an internal surface, the internal surface defining an internal passageway extending from an inlet formed in the proximal portion to an outlet formed in the distal portion to define a longitudinal sprinkler axis (A-A) of the sprinkler assembly; a support member formed about the distal portion of the body for supporting a deflector assembly, the support member including a ring and a pair of stanchions (22a,22b) disposed about the outlet, each of the stanchions (22a,22b) having a proximal end and a distal end with a lateral surface extending between the proximal end and the distal end, the lateral surface defining an axial channel extending parallel to the longitudinal axis (A-A), the proximal end of the stanchions (22a,22b) being formed about the distal portion of the body and the distal end of the stanchions (22a,22b) being formed with the ring so as to space the ring distally from the outlet with the ring circumscribing and orthogonal to the longitudinal axis (A-A), the ring having a proximal surface and a distal surface with a pair of closed-form apertures, each aperture extending from the distal surface to the proximal surface and in communication with the channel; the deflector assembly engaged with the support member for translation from a first location relative to the outlet in an unactuated state of the sprinkler assembly to a second location relative to the outlet in an actuated state of the sprinkler assembly, the second location being distal of the first location, the deflector assembly including a deflector member and a pair of elongate members (104a,104b) extending from the deflector member, each elongate member (104a,104b) being disposed in one of the axial channels and including a projection member that engages the proximal surface of the ring in the second location of the deflector assembly, the proximal surface of the ring including a pair of engagement surfaces disposed about the longitudinal axis (A-A) for engaging the projection members of the deflector assembly, each engagement surface extending proximally into one of the channels from the proximal surface of the annular member and oblique to the lateral surface of the stanchion (22a,22b). a sprinkler frame including a body having a proximal portion, a distal portion, an external surface and an internal surface, the internal surface defining an internal passageway extending from an inlet formed in the proximal portion to an outlet formed in the distal portion to define a longitudinal sprinkler axis (A-A) of the sprinkler assembly; a support member formed about the distal portion of the body for supporting a deflector assembly, the support member including a ring and a pair of stanchions (22a,22b) disposed about the outlet, each of the stanchions (22a,22b) having a proximal end and a distal end with a lateral surface extending between the proximal end and the distal end, the lateral surface defining an axial channel extending parallel to the longitudinal axis (A-A), the proximal end of the stanchions (22a,22b) being formed about the distal portion of the body and the distal end of the stanchions (22a,22b) being formed with the ring so as to space the ring distally from the outlet with the ring circumscribing and orthogonal to the longitudinal axis (A-A), the ring having a proximal surface and a distal surface with a pair of closed-form apertures, each aperture extending from the distal surface to the proximal surface and in communication with the channel; the deflector assembly engaged with the support member for translation from a first location relative to the outlet in an unactuated state of the sprinkler assembly to a second location relative to the outlet in an actuated state of the sprinkler assembly, the second location being distal of the first location, the deflector assembly including a deflector member and a pair of elongate members (104a,104b) extending from the deflector member, each elongate member (104a,104b) being disposed in one of the axial channels and including a projection member that engages the proximal surface of the ring in the second location of the deflector assembly, the proximal surface of the ring including a pair of engagement surfaces disposed about the longitudinal axis (A-A) for engaging the projection members of the deflector assembly, each engagement surface extending proximally into one of the channels from the proximal surface of the annular member and oblique to the lateral surface of the stanchion (22a,22b).