The TX3 20HD A1 blends classic pump-action design with a mix retro styling and modern enhancements making it a go-to firearm for home defense or fun at the range. Inspired by iconic riot shotguns it sports a ventilated heat shield atop the chrome-lined drilled barrel. The receiver comes with an integrated weaver rail that securely mounts the rear ghost-ring sight with a picatinny rail for mounting optics as needed and the fiber-optic front makes target acquisition a snap in varying lighting conditions. TX3 12HD(M) A1 models are compatiable with Mossberg