There are a few meat or marinade injector that seem like oversized hypodermic needles. The syringes come either in the kind hard plastic or stainless steel. Their capacities range from 2-4 ounces that’s enough for most bbq jobs. There are lots of different meat injectors which really makes the art of injecting meat more versatile. One typical injector is the SpitJack Magnum meat injector gun.