Kaw Valley Precision Mach 1 Coupler Features The Kaw Valley Precision Mach 1 inch Coupler is machined from 6061-T651 aluminum a high strength alloy that holds up to the stress of repeated attachment and removal of muzzle hardware. A 1.280 inch outside diameter keeps the coupler compact while matching common 1 inch bore components and the black hard coat anodized finish adds abrasion resistance for long term use. The ID to ID thread pattern of 1-1/8x28 TPI allows two compatible components to be joined securely for extended reach or modular configurations. At just .39 ounces the coupler adds negligible weight to a completed build. Builders working with modular suppressor or muzzle device systems will find this coupler a simple way to extend or combine components without machining custom parts. Its anodized finish is consistent with other black hardware so it blends in visually on a finished rifle or pistol. Kaw Valley Precision manufactures this coupler to tight tolerances for a secure wobble free connection. It is available for sale at GrabAGun for shooters building modular 1 inch thread systems. Kaw Valley Precision Mach 1 Coupler Specifications Manufacturer: Kaw Valley Precision Material: 6061-T651 Aluminum Coating: Black Hard Coat Anodized Outside Diameter: 1.280 Thread: 1-1/8x28 TPI Weight: .39 oz Available At: GrabAGun