This BCA .350 Legend AR-15 Complete Upper has a 20" barrel with a Heavy Barrel profile, with a black nitride finish, and features a 1:16 Twist Rate and a Carbine Length gas system. The Upper includes the new 15" MLOK Rail, an M4 flat-top forged upper receiver with forwarding assist, a BCA Bolt Carrier Group, a Flash Hider, and a Charging Handle. It is chambered in .350 Legend and machined with .300 Blackout feed ramps in the barrel extension.Choose an upper designed by a US company and made in the USA. Choose Bear Creek Arsenal.Check out Magazines here!{{widget type="Magento\Cms\Block\Widget\Block" template="widget/static_block/default.phtml" block_id="56"}}*Note - We strive to provide the most accurate photographs of our product. Variations may occur in the skeletonized section of the handguard/flash hider you receive.{{widget type="Magento\Cms\Block\Widget\Block" template="widget/static_block/default.phtml" block_id="42"}}It is the responsibility of the consumer to ensure all state, local, federal, and ITAR regulations are followed