Trulock Tru-Choke Pattern Plus 20 Ga Turkey Silver. This choke tube by Trulock is much needed when you want to etch a design in your muzzle. The True Lock Tru-Choke Pattern Plus 20 Gauge Choke Tube was specially designed and crafted by professionals who know exactly what you need and want out of your tools. When you're doing changes on your firearm you want to make sure you have high-quality; you want to make sure you have True-Lock True-Choke Pattern Plus 20 Ga Choke. Specifications for Trulock Tru-Choke Pattern Plus 20 Gauge: Manufacturer: Trulock Gauge: 20 Choke Tube System: Tru-Choke Choke Type: Turkey Package Contents: Trulock Tru-Choke Pattern Plus 20 Gauge Trulock 20575: Tru-Choke Pattern Plus 20 Ga Turkey Silver