Pro-Shot II 50 cc pistol-grip syringe is built from high-impact aluminum to be both durable and lightweight. Its simple dosage sleeve can be easily adjusted from 1 to 5 cc. This syringe has a non-adjustable nylon plunger assembly and a luer lock hub. The Pro-Shot II is economically priced. Replacement O-ring included. Wt. 0.7 lb.