Nation An ‘AR-type assault weapon’ was used in Poway synagogue shooting, police say. Was it legal in California? April 28, 2019Wendy Leung, Ventura County (Calif.) StarComments Off on An ‘AR-type assault weapon’ was used in Poway synagogue shooting, police say. Was it legal in California? The weapon used in Saturday's fatal shooting at a California synagogue may have been legal — depending on its configuration and registration.