The Samson Armory has an outstanding selection of buffers for sale online with complete assembly including their aluminium receiver extension, a buffers spring, buffer, endplate and castle nut. The Samson Armory provides gun accessories for sale for the most common firearms on the market AR 15/M4 guns. You can choose from wide range of ar-15 accessories and one of our top sellers buffers from trusted manufacturers such as Bravo Company , Advanced Technology , Doublestar Corp , DPMS .