APE Roux 50cc Pistol Grip Syringe. Sturdy, comfortable chrome-plated pistol grip for multiple injections of all animals. Easy-to-read highly accurate dosage dial. The only Roux syringe on the market with reverse threads on the rear handle for self tightening. The connecting handle screw will never loosen during use. Easily disassembled for cleaning and sterilization. Metal frame and glass barrel. Thanks for looking and have a fine day.