Trulock TRU-Choke Model B Pattern Plus 10 Gauge Full Choke Tube Trulock Exit Diameter .745 Choke Tube Model: B10745 The Pattern Plus style choke tubes fit flush with the end of the barrel. They are manufactured from high strength 17-4 PH stainless steel and are marked on the body with the degree of choke as well as the exit diameter. They are the choice for those shooters who want a high quality choke tube but prefer a flush mount style. Specifications: - Gauge: 10 Gauge - Exit Diameter: .745 - Constriction: .030 Mfg: Trulock Model: B10745 SKU: TL_B10745