Rifle Barrel Kits  Del-Ton, Inc. Selection of barrel kits for M16 and AR 15 models from Del-Ton, Inc. We stock a variety of sizes ranging from 7 to 20 so you are sure to find the right piece for your rifles! Del-Tons AR 15 barrel kit is made in the U.S using only the best materials available! All of our barrel kits utilize mil-spec parts and features handguards, a gas tube, barrel, delta ring and flash hider. Please select from the subcategories below and feel free to contact us with any questions!