This BCA AR-10 Complete Upper has a 24" Black Nitride light-weight barrel, and features a 1:8 Twist Rate, a Rifle length gas system. This upper features our lightweight barrel profile which reduces weight by 1 lb. over traditional contours. It includes the new 15" MLOK Split Rail, an M4 flat-top forged upper receiver, a BCA Bolt Carrier Group, a Flash Hider, and a rear Charging Handle. It is chambered in 6.5 Creedmoor. Shop more 6.5 Creedmoor Uppers!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{{widget type="Magento\Cms\Block\Widget\Block" template="widget/static_block/default.phtml" block_id="159" type_name="CMS Static Block"}}