Kaw Valley Precision Mach Thread Adapter Features The Kaw Valley Precision Mach M14x1 Thread Adapter is machined from 6061-T651 aluminum an alloy chosen for its strength-to-weight ratio and resistance to the stress of repeated muzzle device changes. This adapter converts a left-hand M14x1 threaded barrel to a 1-1/8x28 TPI outside diameter thread opening up compatibility with a much broader range of muzzle devices and suppressor mounts than the factory thread alone allows. Left-hand threading is specifically accounted for in this adapter s design making it a direct fit for firearms built with that less common thread convention. At an outside diameter of 1.285 inches the adapter is sized to work with a wide range of muzzle device bodies. Finished in black hard coat anodizing the adapter resists corrosion and wear from repeated handling and exposure to the elements. With an overall length of just 0.8 inches and adding only 0.45 inches to the firearm when installed this adapter has minimal impact on the gun s balance and handling characteristics. Weighing between 0.535 and 0.585 oz it adds negligible weight to the muzzle end of the barrel. For shooters with a left-hand threaded barrel who want expanded muzzle device options this Kaw Valley Precision adapter offers a precise durable solution. Kaw Valley Precision Mach Thread Adapter Specifications Manufacturer: Kaw Valley Precision Model: Mach Thread Adapter Material: 6061-T651 Aluminum Coating: Black Hard Coat Anodized Outside Diameter: 1.285 Thread: 1-1/8x28 TPI ID M14x1 LH Overall Length: 0.8 Added Length: 0.45 Weight: .535-.585 oz Available At: GrabAGun