Birchwood Casey Bore Weevil 2.0 Retractable Cleaning System 8-32 Thread Plastic. It uses all 8-32 thread accessories and includes 3 quick attach couplers. Specifications for Birchwood Casey Bore Weevil 2.0 Retractable Cleaning System: Manufacturer: Birchwood Casey Fabric/Material: Plastic Gun Type: Universal Features of Birchwood Casey BC-BW2 Bore Weevil Retractable Cleaning System 8-32 Plastic Pull-Through Firearm Cleaner Fully Retractable Tether Action Uses All Existing 8-32 Thread Accessories Cleans Any Length Barrel Patented Package Contents: Birchwood Casey BC-BW2 Bore Weevil Retractable Cleaning System 8-32 Plastic 3 Quick Attach Couplers Birchwood Casey BC-BW2: Bore Weevil 2.0 Retractable Cleaning System 8-32 Thread Plastic